I just wanna appreciate Lasko being like, oh...people are doing this lets make it easy for folks so they can just pop one in. Unlike other air purifier companies who go out of their way to make sure you have to find an obscure shape,size, thickness and make it obsolete in 3 years.
I'd only see it being 3x the price if you already had a box fan and just bought a cheapo filter. Or maybe just a roll of tape lol. I just use tape, filter and box fan probably 50 bucks. This fan is 60 bucks includes the filter lol
That is so weird. Went to buy one of the Lasko fans and Amazon says "This product does not meet California clean air act requirements and cannot be shipped to California." It's a box fan... with a filter. What the hell?
Bladed box fans are not designed to handle the static pressure of air filters. Bladed fans are designed for moving high volume at low static pressure. Sure they will move some air through a filter, but very little air when using a better Merv 13 filter. Merv 13 is necessary to get the p2.5 (particles size), down to single digit/excellent range. Another problem with this type of fan is noise.
Just got one few days ago first thing I noticed after turning on stand in front of it 2 feet away . You can’t even feel the air… soo it’s not cleaning much in the air
Just a heads up the 4" and 5" filter doesn't affect the fan at all I bought a 20x20x5 filter and duct taped it to the back and it never slowed down the fan motor.
@@GanderFlight Yeah that's the exact video I seen where I learned that hack except I used the j channel. Thanks for saving me money. However in other videos I recommended doing this and boy did I get trolled on. Not everybody lives in the ghetto and that's low class very tacky and so on. Just for trying to help save a person money. I could only imagine the comments you got when you made that video. Myself I think its great and doesn't look low class to me
Ineffective design. Air circulates around the corners of the box fan and creates a vortex that significantly impacts airflow due to turbulence. I tried this design first and observed that the filter was collecting impurities on the side facing the fan around the corners.
ya, that’s a known problem. I was hoping to find something I could 3d print and put inside the fan case to help stop the corner vortex. Any idea where to find something like that?
I'm glad I found this video, thank you for producing it. I bought one of these about 10 years ago at a Rite Aid and it is still running. I have broken the feet and was wanting to get another one. Thought they were discontinued. Bummer is that i remember this costing $19.99 at the time.
Thank you for sharing this other option. Do you know how much more/less effective the single filter vs. the 3 filter (Rosy something??) way is? Is it just a matter of less sq ft of filter resulting in less air filtered which I am fine with or is is matter or some mechanical or other reason? Thank you again. I really like that you decided to provide this info.
Yeah the Corsi Rosenthal boxes are more filters and therefore can filter more air faster and don’t have to be changed as often because there are more of them- also takes up much more room
I found the fan on Amazon but due to "California air cleaner requirements" they can't ship to CA, but they can ship a plain one with zero filtration, no problem. CA thinks people are too stupid to make decisions on air quality they breathe.
Not sure why I'd bother with either. Hold an air filter against the back of the fan while you turn it on. The vacuum of the fan will hold the filter in place as long as it's running. No need to use J-channel, zip ties, or tape. No need for a $60 version of a $20 Walmart fan. Physics has this one handled.
I personally used tape to seal the filter to the fan to minimize air gaps. It's not 100% air tight, but definitely better than the filter just being held in place by suction
@@INoIFearIGaming No need to use tape to minimize the air gaps. The fan with filter (even leaking) will in short order replace all the unfiltered air as it runs several times through the filter. ALL the air will have been filtered in short order. See room size.... do the math. Cubic feet per minute of cheap Lasko fan is 1,710 cfm. Room 18 x 12 x 8 is 1,728 cu ft. So in one minute the entire amount of air is run through the filter.... by 10 minutes... probably 98% of the air has been filtered at least once. Sealing the leaks is a waste of time.
@INoIFearIGaming Yes and not only that, the diameter of the fan blade does not even reach the edges of the box because obviously it can because its a circle in a square, but i have watched smoke airflow expermients with these that show as you increase the resistance to the back with filter media the fan will actually start sucking in air from the 4 corners on the front and bypass the filter entirely. To minimize this i cut out a cardboard square with a circular cutout the same diamater of the fan and tape that to the output. These fans are great but they will try to suck in air from every crack of unrestricted airflow.
@@delwoodkelp8590Sealing leaks is not a waste of time, the design of a box fan is very inefficient, the more you restrict the air flow at the back, the more you inrease the vortexes that occur in all 4 corners of the box fan due to fan blades not reaching the outer perimeter of the housing (Thats why a circular duct or housing would be more efficient) As soon as these vortexes increase the fan will just start sucking air in from the front 4 corners and pushing it out bypassing the filter because the air i gonna take the path of least resistance. You can see this effect fully with a smoke machine. You are right though, run the fan long enough and eventually a lot of the crud will end up in the filter, but this design definitely has room for improvement and painters masking tape is super cheap an easy to fix a bunch of the inefficiency.
You must have some very dirty air lol. These are suppose to last 3-6 months. But the u.s has been experiencing alot of bad air quality lately due to wild fire smoke. That's one reason I'm looking forward to winter at this point. To cold and snowy for fires lol
I attached 2 filters the merv 8 first and the cheap filter after it to keep the merv 8 cleaner longer , I guess like they use prefilters on air cleaners. @@hairpunut
They need to increase the speed there reg fans have more pull then this one, i just bought this an i like it buy my diy pulls more air futher away, i use 2 filters in a triangle an works faster
I did this DIY and I'm happy with the result. It should be noticed that the box fan sucks air in through the perimeter (corners especially) of the front grill. To achieve optimal filtering one has to tape or somehow cover that perimeter area. The Air Flex front grill does not take this into account.
@@dakotaneighbors7133 Yes. Run the fan and move a piece of tissue paper near the corners of the grill. You'll see how the fan sucks in air through the front.
@@dakotaneighbors7133 put the filter on the back. Because there isn't a shroud on the front of the fan, or because the fan box isn't circular there is space in the corners - between the square corner and the fan blade, that some air is sucked in from the front grill - its negligible and not worth paying attention to unless you really want to geek out about it - put the filter on the back of the fan.
I have been using bungee chords to hold furnace filters onto my box fans for several years. Our box fans run 24/7/365 for not only air circulation but "white noise" to sleep as well. A standard box fan WITHOUT a furnace lasts for about 2 years before it dies. WITH the furnace filter a standard box fan lasts 3-4 years. (Our furnace is from 1986 with the very thin filter that comes in a roll that really doesn't do much other than catch dust bunnies and it really doesn't do anything for the fact that we have long hair cats). Adding the furnace filters to our box fans has made our indoor air much cleaner and in my experience the traditional air filters circulate as much air on high as a box fan does on low. Not to mention, a box fan is MUCH CHEAPER to replace when it dies and it is all standard sizing. We also decide what level of filtration we want in our home at any given time of year.
I didn't mention, I use the filtrete elite filters. They are either a 13 or a 15. When researching furnace filters for my Mom I discovered that more pleates=more surface area=better air cleaning.
lasko box fan at walmart $20 20 x 20 furnace filter 98 cents fleet farm lasko with pretty filter holder $60 yeah lol I'll stay with my duct tape an bungie cords cause I can buy 3 fans for the same cost
The con of “it’s often out of stock” is the equivalent of a job interviewer asking you what your cons are and you answer “I work too hard” 😂 boy stooop! Lol
I've been doing this for years, i don't get why everyone makes it so complicated. You turn the fan on and the air filter stays in place, what's the need for attaching it? I've also found taping up the corners helped improve performance.
Great concept but Lasko hurries to market and didn’t quality assure the sides don’t seal or overlap lap and seal therefore sucks is air all around fan and air all around sucked in bypasses filter. Plus they don’t make it for a 2 inch filter. one still needs tape to seal around filter holder so why buy just add a filter any dive and tape it or like is a better seal that Lasko overlooked to get to market BA
So this is literally an air scrubber. Just not fancy. You could probably stack 2 or more filters to make it more efficient. This works better than those little house air purifiers.
Thank you for sharing just recently I had a 20 ft new wall put in, unfortunately, the worker never covered or sealed anything off in my house so my house is full of drywall and all those other compound sanding particles flying around, I had to throw a lot out cause it was too hard to get the stuff cleaned stuff just got ruined but trying to deal with the after math I started looking for some more options. I just bought 2 of these after seeing your video thank you for sharing.
@@GanderFlight This filter was added after the occurrence of the two times that I had to dismantle the dual fan unit, and wash all the black dirt off the plastic parts, in the bathtub. That combined with the fact that my indoor tall single fan blades were being coated with the same blackness. Thus a lot of the dirt stuck to the dual fans and most of the rest of the fan casing, but that did not stop more from ending up in my apartment. Anyhow, I feel a whole lot safer now.
Does the airflow indicator on the filters really make a difference? Or is it just a manufacturer thing? I always wondered as most of these type filters appear identical on both sides.
I can't imagine them putting it on there if it didn't make a difference - if nothing else in the rigidity and structure of the cardboard frame and which direction its been designed to withstand force of air being pushed/pulled through.
@@GanderFlight I agree they mark it. There is very little or no visible differences at least on the ones I have used. The framing is the same on both sides the filter material is V pleated so there is equal amount of points.
I think the filters with the aluminum 'fencing' on one side some filters may add an added layer of cleaning power to the air by grabbing larger particulate before it is embedded into the deep creases of the pleated fibre mesh, extending it's life under 'normal' conditions. But, living steps away from a construction site, or if u live on a dirt road, and your front lawn is not far from that road, and there are no tall shrubs that span the width of your home, to help catch high dust levels, your filter will not do much. imho. If you can't see a difference btn the front and back of the furnace filter, I bet it was cheap. I want a fully washable/reusable, filter with the charcoal, that has a metal frame, and a fiber mesh that can be washed and reused, and replaced as required. Has anyone got experience making an air filter system using 4 filters taped together , making a square, then laying the box fan on top, facing up, to create one large purifier? 20x20 lasko fan =$40×13% = 45.20 CAD, 4 Filtrete 1500mpr (approx merv 12) 20x20x1 filters @23.97 13%=108.50. Total = $153.70 CAD. I live in a small, 2 bedroom apt in a 4-plex. My door is not a direct access to outside. There are 2 Apts on the main and 2 above. Shared common area to outside. I am on the main. There is a HUGE DIRT AND DUST ISSUE. I cannot control the dust ad dirt. No forced air. Baseboard heat. Nothing cleaning the air. I am worried. Mold and mildew from basement, and holes between my floors and basement ceiling. Slumlord is always overseas and I need to move but housing is too expensive. Should I just do the one filter on the back of fan? Or, the 4 sides and fan facing up method? Anyone out there, able to offer any suggestions?
if they have a four box filter that have a merv 14 rating, I will buy it. But this fan is a single filter that only 1 inch and only have a merv 10 rating. A single filter box fan needs to be 4inch or more to get good air flow. And people who suffer from asthma and sinus problems needs merv 13 and up.
I actually saw this fan on ebay when looking for an older model of their weather-shield fan and I think I'm going to go with this. I have year round allergies plus I have a pretty expensive gaming rig that is constantly getting dusty. I run my regular 20 inch lasko fan almost year round so to get the benefit of cooling my room and filtering and cleaning the air is a really nice added bonus. Update: Just ordered one from Amazon using your link, and it was cheaper then ebay which had it priced at $75.00
Appreciate this helpful review! I just did a DIY version of the single filter/fan option (we have a small living space) but I could see looking into the Lasko Airflex down the road or recommending to family/friends. I was wondering if you have done any variants on the DIY option with a 20x20x2 filter or something even thicker like 20x20x5 and if the filtration improves in those cases. Thanks again for the clear, to the point video!
You're welcome! I haven't done any additional testing on those larger depth filters - but I'd grab some painters tape and just tape it to the back of the box fan and call it a day. You'd probably get faster airflow through that filter as well.
@@joebobjoesayshibetter filtration but much much faster to plug. Healthy Climate solutions has a MERV 16 that will beat anything you could ever get from a 1” filter
Box fans are the best in price and efficiency wise, but only if they are not so loud and would oscillate. Can you show a way to fix these disadvantages with some kind of easy makeshifter diy 🤔
The first time I made a box fan air filter, the box fan burned after after a month. I wasn't impressed. What I ended up doing was using the old box fan case as a filter holder. The filter is pressed against weather stripping and held in place by bungee straps. The back was enclosed with cardboard except for a hole for a dryer vent connector. A dryer hose connector was glued over the inlet of a floor blower, and the filter holder and floor blower are connected with a dryer hose. It's worked for a number of years with constant use. To be honest, it's probably quieter than a box fan even though it produces a lot of white noise. It covers up my tinnitus and helps me sleep.
Anyone know how this compares to an air purifier for dust? My house as always been very dusty and in renovating at the minute so would be looking to use this while renovating but also to keep using it after just as a prevention method. Any recommendations? Thanks
If you don't already have a box fan around the house and you need one then it is a good idea to buy, but if you do then go for DIY, even if that DIY is just a filter taped to the fan. That is how this should have been presented.
I've used both now - and if I have to buy one from scratch, not repurposing an old box fan, I like the lasko better - the bigger feet give it a more sturdy base and the filter holder is so easy to use.
Good attitude. Sometimes just buying something is better than building some "hack", I was going to make shift something like this that would cost about the same and wouldn't be as nice. It's just for the garage anyway. I don't even care if it's loud. There's going to be louder machines running anyway.
Welp, the main downside of the Lasko Air Flex for me is that it "does not meet California air cleaner regulation requirements, and cannot be shipped to California" :/
One piece of tap and done if in a static location. Or no tape at all been doing that in my loft for years. Only need to sorce a fan and filter. No need to over do it.
It all depends on where you plan to use it and for how long. I don't want a box fan with painters tape in my bedroom - if its in the garage or pulled out for a specific incident, sure, but this is a really good option and its comparable in price when you consider all the features and benefits. However, its not for everyone and it may not be for you.
Tape on a 4 to 5 inch filter which allows far more airflow at any given merv/cadr and last 2 to times longer to compensate for the higher cost...the Lennox merv16 for around $70 being the highest I've seen.... be sure it's not a counterfeit like nearly EVERYTHING on Amazon by not getting from Amazon....I think eBay is even more trustworthy but watch out, both have sellers often mix genuine with knockoffs
IMHO, lasko should have also added a shroud in the front. Also, this is probably only good for low merv rating due to flow restriction from using merv 13.
Thank you for video info. The front shroud, as described in the corsi- ros box, makes a huge difference. Also tried before with shroud and one merv 13, and air flow was significantly reduced. Not sure if it's worth buying this set up though for higher filter efficiency.
I use a 2in thick contractor filter. Lasts 3 months instead of 1. I smoke green in my room and burn incense. I run it 24-7 so I only have to worry abt humidity. Want one in the garage for the sawdust
Hi. How does this compare to a 4 side box? Is the 4 side box 4 times better? Is the 2in1 enough for a living room and the kitchen area? Or will I need a bigger one for that? And how loud is the fan, please?
The 4 sided box will last longer and allow for more airflow - but you'll have to buy 4 filters upfront and it takes up a significant amount of footprint space. As far as is it big enough for your living room and kitchen area - it depends - how large are your living room and kitchen areas? It also depends on how often you want the air in the room pulled through the filter - this will filter your living room/kitchen area eventually but it'll all depend on how much volume of air is in that space as to how often it will filter the whole room. As far as volume -sorry I don't have any measurements on that to share with you - but it is a fan and therefore not silent, even on low you'll hear it running. If you're looking for something silent you'll want to check out air filters purpose made to be quiet.
@@GanderFlight Thank you for the detalied response. I really appreciate it. You got a new subscriber. As for the living/kitchen area - it's around 1300 sq ft. So the more the area, the longer it will filter but will eventually filter enough?
@@Igryan8 That is quite a large area - what are you trying to filter out? If its something like wildfire smoke or heavy pollen I might want to be using two of these in that space.
Some Are Affiliate Links ⭐⭐ *Examples of Products Used In This Video* ⭐⭐⠀ Lasko Air Flex 2 in 1 Box Fan Filter 🔷 Amazon: amzn.to/3NhkSlh 🔷 Menards: www.menards.com/main/heating-cooling/portable-fans/lasko-air-flex-20-air-purifier-box-fan/ff305/p-7720120058360405-c-12727.htm 🔷 Home Depot: www.homedepot.com/p/Lasko-Air-Flex-20-in-3-Speed-Air-Purifier-and-Room-Fan-FF305/315516663 🔷 Walmart: www.walmart.com/ip/Lasko-Air-Flex-2-in-1-20-inch-Box-Fan-and-Air-Purifier-in-One-with-3-Speeds-FF305-White/473758982 🔷 QVC: www.qvc.com/qvc.product.H232553.html 🔷 Boscov’s: www.boscovs.com/product/lasko-air-flex-2-in-1-20in-box-fan-air-purifier/763003 🔷 Wayfair: www.wayfair.com/Lasko--Lasko-23.2-Box-Fan-FF305-L447-K~UNW10066.html 🔷 Amazon: amzn.to/3NhkSlh
⭐⭐ *Examples of Products Used In This Video* ⭐⭐⠀ Lasko Air Flex 2 in 1 Box Fan Filter 🔷 Amazon: amzn.to/3NhkSlh 🔷 Menards: www.menards.com/main/heating-cooling/portable-fans/lasko-air-flex-20-air-purifier-box-fan/ff305/p-7720120058360405-c-12727.htm 🔷 Home Depot: www.homedepot.com/p/Lasko-Air-Flex-20-in-3-Speed-Air-Purifier-and-Room-Fan-FF305/315516663 🔷 Walmart: www.walmart.com/ip/Lasko-Air-Flex-2-in-1-20-inch-Box-Fan-and-Air-Purifier-in-One-with-3-Speeds-FF305-White/473758982 🔷 QVC: www.qvc.com/qvc.product.H232553.html 🔷 Boscov’s: www.boscovs.com/product/lasko-air-flex-2-in-1-20in-box-fan-air-purifier/763003 🔷 Wayfair: www.wayfair.com/Lasko--Lasko-23.2-Box-Fan-FF305-L447-K~UNW10066.html 🔷 Amazon: amzn.to/3NhkSlh Watch all the Box Fan Air Filter Videos here: ruclips.net/p/PLAriVJ-zrwINFsLm9NWBSUFdyV1x3ebqZ 🔸 DIY Air Filter | Box Fan Modification | Cleaner Air for Your Home from Pollen or Wildfire Smoke! ruclips.net/video/9vJk5BM8xUo/видео.html 🔸 Are DIY Box Fan Filters Safe? ruclips.net/video/zE4qmN_EOXw/видео.html 🔸⚠ Watch This BEFORE Making a DIY Box Fan Air Filter!!!: ruclips.net/video/N_B4LSa0NDE/видео.html
Hey, great product for people who want to pay a bunch more. No you don't need to spend as much for diy. You are just sponsored commercial not objective review
Nope - no sponsorship here. Have been using the DIY version for years - have two other videos up about those - and bough this with my own money. Have a good day.
I just wanna appreciate Lasko being like, oh...people are doing this lets make it easy for folks so they can just pop one in. Unlike other air purifier companies who go out of their way to make sure you have to find an obscure shape,size, thickness and make it obsolete in 3 years.
Yupp - its a great solution!
and for provits
but in a good way
@@ShiroCh_IDThe way things should be done but rarely are.
Lol 😆 so true lesko lol
Lasko has been making the air filter fan for at least 10 years now.
Did I just watch a Lasko 2 in 1 commercial?
Yes, yes you did
I'd imagine why the Lasco Airflex is out of stock would be that everybody knows that box fans are the greatest.
I've been happy with the purchase - so maybe!
At 3X the price and having the DIY already, I'll stick with el-cheapo.
If you already have the parts - absolutely, but I'm not sure where you're getting 3x the price...
I'd only see it being 3x the price if you already had a box fan and just bought a cheapo filter. Or maybe just a roll of tape lol. I just use tape, filter and box fan probably 50 bucks. This fan is 60 bucks includes the filter lol
That is so weird. Went to buy one of the Lasko fans and Amazon says "This product does not meet California clean air act requirements and cannot be shipped to California." It's a box fan... with a filter. What the hell?
That's awesome. I make them, to filter when I paint. Garage Sales and Garbage days, and they usually cost me like $5 each, but, this is super cool
Bladed box fans are not designed to handle the static pressure of air filters. Bladed fans are designed for moving high volume at low static pressure. Sure they will move some air through a filter, but very little air when using a better Merv 13 filter. Merv 13 is necessary to get the p2.5 (particles size), down to single digit/excellent range. Another problem with this type of fan is noise.
Yup, wondered about weak pressure and not pulling the air through the filter
Just got one few days ago first thing I noticed after turning on stand in front of it 2 feet away . You can’t even feel the air… soo it’s not cleaning much in the air
What kind of fan would you recommend? I was going down the route of computer fans
Just a heads up the 4" and 5" filter doesn't affect the fan at all I bought a 20x20x5 filter and duct taped it to the back and it never slowed down the fan motor.
👍 Nice
Why MRV 10? That doesn’t do ya much good. MRV 13 should be the minimum.
Its what comes with it - easily swap it out.
Ordered 2 and they work great! Thank you so much!
Great to hear!
How about inline duct fan? Would it be more suitable/better than the box fan? Or not..?
Ridiculously Priced! 20 dollar fan and a plastic storage container lid for almost 70 bucks 😂 just diy people and save money.
and here's a diy tutorial if thats more your style: ruclips.net/video/9vJk5BM8xUo/видео.html
@@GanderFlight Yeah that's the exact video I seen where I learned that hack except I used the j channel. Thanks for saving me money. However in other videos I recommended doing this and boy did I get trolled on. Not everybody lives in the ghetto and that's low class very tacky and so on. Just for trying to help save a person money. I could only imagine the comments you got when you made that video. Myself I think its great and doesn't look low class to me
Ineffective design. Air circulates around the corners of the box fan and creates a vortex that significantly impacts airflow due to turbulence. I tried this design first and observed that the filter was collecting impurities on the side facing the fan around the corners.
ya, that’s a known problem. I was hoping to find something I could 3d print and put inside the fan case to help stop the corner vortex. Any idea where to find something like that?
I'm glad I found this video, thank you for producing it. I bought one of these about 10 years ago at a Rite Aid and it is still running. I have broken the feet and was wanting to get another one. Thought they were discontinued. Bummer is that i remember this costing $19.99 at the time.
Prices have certainly gone up huh?
Thank you for sharing this other option. Do you know how much more/less effective the single filter vs. the 3 filter (Rosy something??) way is? Is it just a matter of less sq ft of filter resulting in less air filtered which I am fine with or is is matter or some mechanical or other reason? Thank you again. I really like that you decided to provide this info.
Yeah the Corsi Rosenthal boxes are more filters and therefore can filter more air faster and don’t have to be changed as often because there are more of them- also takes up much more room
@@GanderFlight Thank you. That's a reasonable tradeoff worthy of the aesthetic/spatial gain for me.
Great video. I didn't even know Lasko made this box fan. Such a time saver.
Definitely!
$75 versus a $16 box fan and $4 filter is hardly "nearly the same price". it does look much tidier though.
I found the fan on Amazon but due to "California air cleaner requirements" they can't ship to CA, but they can ship a plain one with zero filtration, no problem. CA thinks people are too stupid to make decisions on air quality they breathe.
Unavailable in California :( "This product does not meet California air cleaner regulation requirements, and cannot be shipped to California"
Not sure why I'd bother with either. Hold an air filter against the back of the fan while you turn it on. The vacuum of the fan will hold the filter in place as long as it's running. No need to use J-channel, zip ties, or tape. No need for a $60 version of a $20 Walmart fan. Physics has this one handled.
I personally used tape to seal the filter to the fan to minimize air gaps. It's not 100% air tight, but definitely better than the filter just being held in place by suction
I saw the price and I just started laughing
@@INoIFearIGaming No need to use tape to minimize the air gaps. The fan with filter (even leaking) will in short order replace all the unfiltered air as it runs several times through the filter. ALL the air will have been filtered in short order. See room size.... do the math.
Cubic feet per minute of cheap Lasko fan is 1,710 cfm. Room 18 x 12 x 8 is 1,728 cu ft.
So in one minute the entire amount of air is run through the filter.... by 10 minutes... probably 98% of the air has been filtered at least once. Sealing the leaks is a waste of time.
@INoIFearIGaming Yes and not only that, the diameter of the fan blade does not even reach the edges of the box because obviously it can because its a circle in a square, but i have watched smoke airflow expermients with these that show as you increase the resistance to the back with filter media the fan will actually start sucking in air from the 4 corners on the front and bypass the filter entirely. To minimize this i cut out a cardboard square with a circular cutout the same diamater of the fan and tape that to the output. These fans are great but they will try to suck in air from every crack of unrestricted airflow.
@@delwoodkelp8590Sealing leaks is not a waste of time, the design of a box fan is very inefficient, the more you restrict the air flow at the back, the more you inrease the vortexes that occur in all 4 corners of the box fan due to fan blades not reaching the outer perimeter of the housing (Thats why a circular duct or housing would be more efficient) As soon as these vortexes increase the fan will just start sucking air in from the front 4 corners and pushing it out bypassing the filter because the air i gonna take the path of least resistance. You can see this effect fully with a smoke machine. You are right though, run the fan long enough and eventually a lot of the crud will end up in the filter, but this design definitely has room for improvement and painters masking tape is super cheap an easy to fix a bunch of the inefficiency.
This is a company paying attention. So glad this exists.
I like to use a furnace 4 in filter, do you know any DIY or commercial that can add the thick furnance filter?
The problem with the Lasko Airflex for me is, it's only using a Merv 8, where as if I did a DIY I would opt for the Merv 13.
Mine came with a MERV11 and then when you replace it after the first time you can put whatever you want in there.
It should come with either a Merv 10 or 11... Never heard of one coming with a Merv 8. Either way, you can just swap it out immediately.
What to do? Baffling? 🤪 Merv 8 problem? Desire higher Merv rated 20x20 filter? What to do? HoHum🤕
I use 1 bungee cord to hold the filter in place. How good does it work? Who knows, but after 30 days, the white filter is brown 🤷♂️
You must have some very dirty air lol. These are suppose to last 3-6 months. But the u.s has been experiencing alot of bad air quality lately due to wild fire smoke. That's one reason I'm looking forward to winter at this point. To cold and snowy for fires lol
Sounds like its working!
I attached 2 filters the merv 8 first and the cheap filter after it to keep the merv 8 cleaner longer , I guess like they use prefilters on air cleaners. @@hairpunut
@@nzimbilef Ahh nice I just been using a higher end one for smoke and smog due to the wildfires dumping nasty air down on us from Canada above.
Price too hight fior what it is
We did this with 1 20x20, 3 10x20s and a s'load of tape 😅
They need to increase the speed there reg fans have more pull then this one, i just bought this an i like it buy my diy pulls more air futher away, i use 2 filters in a triangle an works faster
Two filters in a triangle will definitely allow more airflow at the expense of a larger footprint
No universe am I paying $60 for a box fan
I'd like to buy one but they don't sell those in Europe
I did this DIY and I'm happy with the result. It should be noticed that the box fan sucks air in through the perimeter (corners especially) of the front grill. To achieve optimal filtering one has to tape or somehow cover that perimeter area. The Air Flex front grill does not take this into account.
👍
Front side? So the side it’s blowing air? It sucks in air through the front? Doing this soon so curious
@@dakotaneighbors7133 Yes. Run the fan and move a piece of tissue paper near the corners of the grill. You'll see how the fan sucks in air through the front.
@@dakotaneighbors7133 put the filter on the back. Because there isn't a shroud on the front of the fan, or because the fan box isn't circular there is space in the corners - between the square corner and the fan blade, that some air is sucked in from the front grill - its negligible and not worth paying attention to unless you really want to geek out about it - put the filter on the back of the fan.
Banned in California. Thanks newsom.
I have been using bungee chords to hold furnace filters onto my box fans for several years. Our box fans run 24/7/365 for not only air circulation but "white noise" to sleep as well. A standard box fan WITHOUT a furnace lasts for about 2 years before it dies. WITH the furnace filter a standard box fan lasts 3-4 years. (Our furnace is from 1986 with the very thin filter that comes in a roll that really doesn't do much other than catch dust bunnies and it really doesn't do anything for the fact that we have long hair cats). Adding the furnace filters to our box fans has made our indoor air much cleaner and in my experience the traditional air filters circulate as much air on high as a box fan does on low. Not to mention, a box fan is MUCH CHEAPER to replace when it dies and it is all standard sizing. We also decide what level of filtration we want in our home at any given time of year.
I didn't mention, I use the filtrete elite filters. They are either a 13 or a 15. When researching furnace filters for my Mom I discovered that more pleates=more surface area=better air cleaning.
Sounds like you've got it figured out for your space!
lasko box fan at walmart $20 20 x 20 furnace filter 98 cents fleet farm lasko with pretty filter holder $60 yeah lol I'll stay with my duct tape an bungie cords cause I can buy 3 fans for the same cost
The con of “it’s often out of stock” is the equivalent of a job interviewer asking you what your cons are and you answer “I work too hard” 😂 boy stooop! Lol
I've been doing this for years, i don't get why everyone makes it so complicated. You turn the fan on and the air filter stays in place, what's the need for attaching it?
I've also found taping up the corners helped improve performance.
Great concept but Lasko hurries to market and didn’t quality assure the sides don’t seal or overlap lap and seal therefore sucks is air all around fan and air all around sucked in bypasses filter. Plus they don’t make it for a 2 inch filter. one still needs tape to seal around filter holder so why buy just add a filter any dive and tape it or like is a better seal that Lasko overlooked to get to market
BA
Thanks for the perspective
So this is literally an air scrubber. Just not fancy. You could probably stack 2 or more filters to make it more efficient. This works better than those little house air purifiers.
Will a Merv 13 or higher work in this
Wondering most hvac intakes are about the same size as box fans. That's thing that make me go uhm.. was that on purpose?
Thank you for sharing just recently I had a 20 ft new wall put in, unfortunately, the worker never covered or sealed anything off in my house so my house is full of drywall and all those other compound sanding particles flying around, I had to throw a lot out cause it was too hard to get the stuff cleaned stuff just got ruined but trying to deal with the after math I started looking for some more options. I just bought 2 of these after seeing your video thank you for sharing.
Sorry to hear that! Sounds like you're on the way to remedying it as best you can though.
Thank you so much for sharing this video, may I ask what MERV# you use?
Watched your vid and ordered one doing work around the house n no matter how much I seal up rooms dust finds its way hopefully this will help
Has it helped at all?
You can literally just tape it on... Or even not that. Sucktion it to the back of the fan..
You could and it would mostly stay in place as long as the fan is running
Does the lasso version come with a 4 inch thick filter?. Looking to get more filtration. As one inch isn't much of a filtering dusty dry climates
I put a filter on my window dual fan. WOW ! What a lot of dirt there is in the outdoor air. The dirt is pitch black. This was totally unexpected.
Nice!
@@GanderFlight This filter was added after the occurrence of the two times that I had to dismantle the dual fan unit, and wash all the black dirt off the plastic parts, in the bathtub. That combined with the fact that my indoor tall single fan blades were being coated with the same blackness. Thus a lot of the dirt stuck to the dual fans and most of the rest of the fan casing, but that did not stop more from ending up in my apartment. Anyhow, I feel a whole lot safer now.
Both Amazon and Walmart say they can't ship to California because it doesn't meet standards in air quality... WTF
Hahaha - ya gotta admit thats kinda funny
$70, no thanks!🎉😂
Does the airflow indicator on the filters really make a difference? Or is it just a manufacturer thing? I always wondered as most of these type filters appear identical on both sides.
I can't imagine them putting it on there if it didn't make a difference - if nothing else in the rigidity and structure of the cardboard frame and which direction its been designed to withstand force of air being pushed/pulled through.
@@GanderFlight I agree they mark it. There is very little or no visible differences at least on the ones I have used. The framing is the same on both sides the filter material is V pleated so there is equal amount of points.
I assume you are correct. I didn't know if anyone really knew or tested them in any way.
I think the filters with the aluminum 'fencing' on one side some filters may add an added layer of cleaning power to the air by grabbing larger particulate before it is embedded into the deep creases of the pleated fibre mesh, extending it's life under 'normal' conditions. But, living steps away from a construction site, or if u live on a dirt road, and your front lawn is not far from that road, and there are no tall shrubs that span the width of your home, to help catch high dust levels, your filter will not do much. imho.
If you can't see a difference btn the front and back of the furnace filter, I bet it was cheap. I want a fully washable/reusable, filter with the charcoal, that has a metal frame, and a fiber mesh that can be washed and reused, and replaced as required.
Has anyone got experience making an air filter system using 4 filters taped together , making a square, then laying the box fan on top, facing up, to create one large purifier?
20x20 lasko fan =$40×13%
= 45.20 CAD, 4 Filtrete 1500mpr (approx merv 12) 20x20x1 filters @23.97 13%=108.50.
Total = $153.70 CAD.
I live in a small, 2 bedroom apt in a 4-plex. My door is not a direct access to outside. There are 2 Apts on the main and 2 above. Shared common area to outside. I am on the main. There is a HUGE DIRT AND DUST ISSUE. I cannot control the dust ad dirt. No forced air. Baseboard heat. Nothing cleaning the air. I am worried. Mold and mildew from basement, and holes between my floors and basement ceiling. Slumlord is always overseas and I need to move but housing is too expensive.
Should I just do the one filter on the back of fan? Or, the 4 sides and fan facing up method? Anyone out there, able to offer any suggestions?
if they have a four box filter that have a merv 14 rating, I will buy it. But this fan is a single filter that only 1 inch and only have a merv 10 rating. A single filter box fan needs to be 4inch or more to get good air flow. And people who suffer from asthma and sinus problems needs merv 13 and up.
Hope you found what works for you!
I did this to my fan yrs ago. I worked! Will do the same.
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I thought these would be $30 but they're $60. how is that competitive to a $20 lasko, a $5 filter and some tape ?
Because you're not getting a merv 10 or 13 filter for $5....
I actually saw this fan on ebay when looking for an older model of their weather-shield fan and I think I'm going to go with this. I have year round allergies plus I have a pretty expensive gaming rig that is constantly getting dusty. I run my regular 20 inch lasko fan almost year round so to get the benefit of cooling my room and filtering and cleaning the air is a really nice added bonus.
Update: Just ordered one from Amazon using your link, and it was cheaper then ebay which had it priced at $75.00
Sounds like the prefect setup for you then!
Appreciate this helpful review! I just did a DIY version of the single filter/fan option (we have a small living space) but I could see looking into the Lasko Airflex down the road or recommending to family/friends. I was wondering if you have done any variants on the DIY option with a 20x20x2 filter or something even thicker like 20x20x5 and if the filtration improves in those cases. Thanks again for the clear, to the point video!
You're welcome! I haven't done any additional testing on those larger depth filters - but I'd grab some painters tape and just tape it to the back of the box fan and call it a day. You'd probably get faster airflow through that filter as well.
I'd just go with the Airflex + 1" 3M MERV 13 or 14 filter. The 1" 3M filters really are better than other filters even at 2".
@@joebobjoesayshi Thank you. I did the DIY and stuck with the 1" Merv 13. Can you explain why the thinner filters are better? Appreciate it!
@@blinddog1212 According to ruclips.net/video/XAJ__E-hIJc/видео.html 3M air filters outperform all. Idk.
@@joebobjoesayshibetter filtration but much much faster to plug. Healthy Climate solutions has a MERV 16 that will beat anything you could ever get from a 1” filter
Box fans are the best in price and efficiency wise, but only if they are not so loud and would oscillate. Can you show a way to fix these disadvantages with some kind of easy makeshifter diy 🤔
At that point you're better off buying a purpose built in room air filter
When I typed in "Box Fan" on Amazon, how come this didn't show up? Maybe it did but I was too busy not paying attention.
ok.
The first time I made a box fan air filter, the box fan burned after after a month. I wasn't impressed. What I ended up doing was using the old box fan case as a filter holder. The filter is pressed against weather stripping and held in place by bungee straps. The back was enclosed with cardboard except for a hole for a dryer vent connector. A dryer hose connector was glued over the inlet of a floor blower, and the filter holder and floor blower are connected with a dryer hose. It's worked for a number of years with constant use. To be honest, it's probably quieter than a box fan even though it produces a lot of white noise. It covers up my tinnitus and helps me sleep.
Sounds like a cool setup
Anyone know how this compares to an air purifier for dust? My house as always been very dusty and in renovating at the minute so would be looking to use this while renovating but also to keep using it after just as a prevention method. Any recommendations? Thanks
Would definitely be helpful - lots of woodworkers use this or something similar in their shops
Well your video convinced me 100% to get one... No one will ship to California 😒
Oye
If you don't already have a box fan around the house and you need one then it is a good idea to buy, but if you do then go for DIY, even if that DIY is just a filter taped to the fan. That is how this should have been presented.
Thanks for sharing your opinion!
Just ordered from Amazon. No brainer
California won't allow it on Amazon
Only reason for the air flow is one side of the filter is reinforced so it don't collapse inside the furnace
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Your original design is still the best, IMHO...because the commercial version has slats which lower air speed before passing through the filter...
I've used both now - and if I have to buy one from scratch, not repurposing an old box fan, I like the lasko better - the bigger feet give it a more sturdy base and the filter holder is so easy to use.
I think I need to get one just to have a use for all of these excess subscribe and save furnace filters.
:)
So its a 23.2 inch fan but can fit a 20inch filter, correct?
the replacement filter size is 20 inches
They need to back make the 90s Lasko box fans, the D-shaped blades move more air than the flower petal blades.
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Good attitude. Sometimes just buying something is better than building some "hack", I was going to make shift something like this that would cost about the same and wouldn't be as nice. It's just for the garage anyway. I don't even care if it's loud. There's going to be louder machines running anyway.
Right on!
Iam waiting this video from tamil nadu.
Hai brother i wanna buy this type of air purifier this model link share please 🙏
The most updated link is in the video description - thanks for watching!
@@GanderFlight thank you brother 🙏
Hi, thank you for awsome video, could you also advise, any room air filter for kitchen , which can be used in apartment.
This would work in an apartment kitchen
ordered one before the video was over
Thank goodness for 3d printing
👍
Welp, the main downside of the Lasko Air Flex for me is that it "does not meet California air cleaner regulation requirements, and cannot be shipped to California" :/
That's pretty ironic...
Does it use too much power or something?
Thank you from NYC 🗽🗽🗽🗽
Welcome!!
One piece of tap and done if in a static location. Or no tape at all been doing that in my loft for years. Only need to sorce a fan and filter. No need to over do it.
It all depends on where you plan to use it and for how long. I don't want a box fan with painters tape in my bedroom - if its in the garage or pulled out for a specific incident, sure, but this is a really good option and its comparable in price when you consider all the features and benefits. However, its not for everyone and it may not be for you.
Cool! I didn’t know this existed
I have a question , is DIY air purifier is equally efficient as branded air purifiers???
Im not qualified to answer that question.
Lot's of complaints the fans aren't made to pull air. And also that it doesn't cool since they do advertize that. Any other suggestions?
Its sold for this intended purpose - not sure what other suggestions youre looking for.
Tape on a 4 to 5 inch filter which allows far more airflow at any given merv/cadr and last 2 to times longer to compensate for the higher cost...the Lennox merv16 for around $70 being the highest I've seen.... be sure it's not a counterfeit like nearly EVERYTHING on Amazon by not getting from Amazon....I think eBay is even more trustworthy but watch out, both have sellers often mix genuine with knockoffs
The control unit fell off the first time I used this box fan
Did you return it?
IMHO, lasko should have also added a shroud in the front. Also, this is probably only good for low merv rating due to flow restriction from using merv 13.
It comes with a MERV10 filter.
Thank you for video info. The front shroud, as described in the corsi- ros box, makes a huge difference. Also tried before with shroud and one merv 13, and air flow was significantly reduced. Not sure if it's worth buying this set up though for higher filter efficiency.
I use a 2in thick contractor filter. Lasts 3 months instead of 1.
I smoke green in my room and burn incense. I run it 24-7 so I only have to worry abt humidity. Want one in the garage for the sawdust
Will definitely help for sawdust
These don’t get to hot ? Won’t create a fire ?
@@SouthernSoul-lh4mb been running for 4years on low
I loved you in Superbad.
???
😂😂😂😂😂
Buahaha that's funny he does look like him
Can you use generic filters on the Lasko or will you have to purchase Lasko filters to properly fit their product?
Any 20"x20"x1" filter will fit.
Any brand will work
I used a spacer to prevent air deadzones. My entire filter turns gray, there is no gray circle in the middle.
Spacer between the filter and the back of the fan grate?
That's right. I just built a frame out of cardboard. 4 pieces. @@GanderFlight
Is the filter placed behind the fan (pulling dirty air) or in front of the fan (pushing dirty air into the filter)?
Behind the fan motor - pulling dirty air into the filter then out through the fan
Hi. How does this compare to a 4 side box? Is the 4 side box 4 times better? Is the 2in1 enough for a living room and the kitchen area? Or will I need a bigger one for that?
And how loud is the fan, please?
The 4 sided box will last longer and allow for more airflow - but you'll have to buy 4 filters upfront and it takes up a significant amount of footprint space.
As far as is it big enough for your living room and kitchen area - it depends - how large are your living room and kitchen areas? It also depends on how often you want the air in the room pulled through the filter - this will filter your living room/kitchen area eventually but it'll all depend on how much volume of air is in that space as to how often it will filter the whole room.
As far as volume -sorry I don't have any measurements on that to share with you - but it is a fan and therefore not silent, even on low you'll hear it running. If you're looking for something silent you'll want to check out air filters purpose made to be quiet.
@@GanderFlight Thank you for the detalied response. I really appreciate it. You got a new subscriber.
As for the living/kitchen area - it's around 1300 sq ft. So the more the area, the longer it will filter but will eventually filter enough?
@@Igryan8 That is quite a large area - what are you trying to filter out? If its something like wildfire smoke or heavy pollen I might want to be using two of these in that space.
@@GanderFlight Oh, no. I just want a cleaner air, to remove some bad smells. No smoke or anything like that.
Where can I find this filter please?
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Just use duck tape.
That'll function too.
Ty, for awesome info...
👍 Thanks for watching!
Thanks god bless
Enjoy!
Hey, great product for people who want to pay a bunch more. No you don't need to spend as much for diy. You are just sponsored commercial not objective review
Nope - no sponsorship here. Have been using the DIY version for years - have two other videos up about those - and bough this with my own money. Have a good day.
Thanks so much! I'm glad I revisited this project since my last research. Are there any worries to use MERV 13/14 with the 2 in 1 fan?
I personally wouldn’t have any concerns with it- but you’ll have to make your own decision.
I cut a circle in the filter where the motor is so the motor doesn't get hot and burn out or burn down your house 🐾💗
Thanks for sharing that variation
Lasko is awesome.
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