Smart Air aims to clear the air not just physically, but also in your minds! What are some things you wish to get our nerd scientists on the team to share about? Let us know here! And don't forget to subscribe and hit the "bell" button! (we do not spam random stuff, the air dirty enough. we keep your notifications clean as well!)
FIT TEST: The hospital where I worked in USA required me to be fit tested for N95 mask. This was to make sure I would be protected mainly from Tuberculosis, which was prevalent in our patient population. This was pre-COVID19. Maybe the hospitals cannot afford the FIT TEST requirement under the current states of emergency.
I live in the US and from everything I’ve read the fit testing standard is the opposite of what you say in this video. N95 needs a fit test and kn95 does not. This is what is stated on the American dental association website as well.
Great point, and it's good to see you questioning the claims! It seems backwards that the N95 standard wouldn't require a fit test but the KN95 one would. However that's the reality - but don't trust us, trust the actual data. Here's a link to the N95 standard, from the Code of Federal Regulations: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170 The regulations list only two tests called "particulate filter efficiency level determination" and "Airflow resistance tests". The 3M table linked to in the description above also lists 'NA' for row "Total inward leakage (TIL)* -tested on human subjects each performing exercise" - i.e. 'fit test'. Remember, this doesn't mean that specific associations like the American dental association don't require fit tests for their organisations or teams! It just means that to call a mask an N95 mask, it doesn't need to have gone through a fit test before being certified.
@@SmartAirFilters I am a NYS registered nurse and that is not the case in these hospitals. In order for an N95 mask to be fully effective, it must be fit tested.
That may be the case! However note that N95 and KN95 masks can come in many different shapes and sizes, so (where possible) it's worth checking a few different masks to find the one that fits you best
The number 95 does not mean that the mask filters out 95% of particles. It means that it can filter out up to 95% of particles, not stating any specific size of particles. This is not the same as the statement made in the video, stating that it filters out 95% of particles. Now, it is also important to understand that the size of particles is not specified. Clearly, it can filter out larger particles more reliably than small particles.
Great follow up Frankentronics, however that’s not 100% right. The standard for N95 masks states that to be a P95, R95 or N95 mask it must have an efficiency ≥95%. You can find that by searching the official standard for ‘95%’ here: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170 There are also very strict requirements on the size of particles that should be tested. For the N95 mask, the standard specifies: “When testing N-series filters, a sodium chloride or equivalent solid aerosol … The sodium chloride test aerosol shall have a particle size distribution with count median diameter of 0.075±0.020 micrometer and a standard geometric deviation not exceeding 1.86 at the specified test conditions as determined with a scanning mobility particle sizer or equivalent.”. That’s a very long-winded way of saying “it uses sodium chloride that is 0.075 micrometers in size” (the COVID-19 coronavirus is roughly 0.06 - 0.14 micrometers).
Thanks Janice! You can also find wide range of information about air pollution, covid-19, masks, air purifiers & monitors here: smartairfilters.com/en/clean-air-blog/ . Breathe safe!
I find it disappointing that in the UK the government has stopped hardware stores selling dust masks to the public so i now have to buy a Chinese standard mask online at twice the price of what my local hardware store was selling dust masks 3 months ago. Annoying in Scotland where the government strongly recommends a face covering but wont give them out free to the public
Thanks for watching and for the feedback, Ernie! Smart Air aims to educate and raise awareness to more people using our platform. We will take note your feedback so we can achieve our goal of making our informational contents more understanding and accessible for everyone! Breathe safe! ☺
Whether it is N95 or KN95, during this period, if not properly worn or not worn, the risk of infection will be higher. Both masks have a certain protective effect.
People fit differently into each mask! But glad that N95 fits you well. Check out this article to find out the steps to check whether your masks fits well! smartairfilters.com/en/blog/poor-mans-fit-test/
We actually have done tests on whether N95 would limit our oxygen intake and results have shown that O2 levels actually remains relatively similar even with moderate levels of exercise! You can take a look at our data from the link here: smartairfilters.com/en/blog/n95-face-mask-limit-breathe-oxygen/
Thanks for watching, Porsher22! You can also find wide range of information about air pollution, covid-19, masks, air purifiers & monitors here: smartairfilters.com/en/clean-air-blog/ . Breathe safe!
Go to 3M site and look at each one's functionality. For example one type is made to filter out sawdust for wood workers. Another is made to filter out vapour for spray painters so it's water resistant.
You don’t necessarily have to buy from 3M, either. There are other US brands that make N95s for medical professionals. Brand doesn’t matter so much as where it was produced and quality.
I don’t know whether wearing a standard mask gives you 100% protection because I was wearing two masks of three ply layers together each time when I step out of house and followed maximum hygiene practices but I was infected a General viral flu a week ago.
It's because surgical mask is not fitted to your face, so aerosols could slip through space around your mask, it could block droplets only, but not aerosols
Hey Smart Air: You need to go through the comments and delete the idiots and spammers. Not all viewers can tell what's real, so it falls on you to protect them.
Thanks for the hint! We've just gone through and cleared through some of the spam comments. We hope the video and comments section can stay informative and useful to our viewers
I believe an N-95 respirators are tight fitting masks. Fit Testing is required by OSHA. KN95 masks are not tight fitting and do not require fit testing.
Hey!I have a KN95 that has a yellow filter,i looked on the package and it is real,(its on the 2006 chinese standard) is it still as good as a normal KN95 masK?
Hi Antonio! Three randomized studies have found surgical masks are just as effective as N95 masks at preventing virus transmission. They hypothesize the main reason for this is that any mask can reduce the hand-to-face contact, although we don’t know this for sure. You can check more of the data here: smartairfilters.com/en/blog/comparison-mask-standards-rating-effectiveness/
Data shows that surgical masks and N95/KN95 masks are just as effective as each other at reducing the spread of viruses. So it really comes down to a matter of personal choice. Surgical masks may be more comfortable over a longer period of time, and lead to less touching/removing of the mask. However N95/KN95 masks may be slightly better at actually filtering viruses. More info: smartairfilters.com/en/blog/n95-mask-surgical-prevent-transmission-coronavirus/
Smart Air Thanks for responding! I am also curious about effectiveness of counterfeit KN 95 masks for general public use. Im pretty sure theres a high number of counterfeit kn 95 or surgical masks going around niw
@@jl1702 Back in June of this year (2020) we tested a lot of KN95 and N95 masks, and found many to be sub-par. There's more info on those tests here: smartairfilters.com/en/blog/half-chinese-n95-face-mask-fail-standards-unreliable/
These are common on lots of KN95 masks, and are a result of the manufacturing process to make the mask. These small parts of the mask may have lower filtration efficiencies, however the rule is that KN95 masks must filter 95% of particles overall, so even if there are small areas that don’t quite reach 95%, the mask as a whole should. More info: smartairfilters.com/learn/smart-air-knowledge-base/why-holes-my-n95-kn95-masks/
Smart Air+ My local GNC is selling KN-95 Masks, but not N-95 masks. I might have to see a Doctor that resides in a local hospital and I was wondering, which filters out the Covid-19 Virus better KN-95 Masks or N-95 Masks? I would really appreciate it if you could kindly respond to my question. Thank you for reading this and stay well as much as stay safe:).
Exactly right Rombout. Fit tests are useful as they give an *indication* of how well a mask will fit on people's faces, but that's why a controlled test of the mask's filtration efficiency is also important. This is the one that's required for both N95 and KN95 tests. Note that not all KN95 masks are exactly the same. Different manufacturers may produce masks with slightly different shapes and fits, to if possible, it's worth trying out a few different masks to find which one fits you best. Here's how to perform what we call "the poor man's fit test" smartairfilters.com/en/blog/poor-mans-fit-test/
Do anybody know If kn95 masks 😷 “with breathing valvet” are safe? 🤔 , I heard masks with valvet don’t protect other people but what about if they are kn95 with valvet? 🤔
Hello Angel, we’ve run tests on masks with valves, there’s no increase in risk for the person wearing the mask. (Learn more here: smartairfilters.com/learn/smart-air-knowledge-base/masks-valves-less-effective/ ) But you’re right: it increases the risk of viruses spreading for other people if the person wearing the mask with the valve is infected. That’s because the valve will let our water droplets back into the air, without filtering. If you’re concerned about virus transmission, then it’s best to avoid masks with valves.
N95 and KN95 masks were originally intended as single-use masks, but the current circumstances are meaning many people are having to re-use the masks. We've covered the data on how best to disinfect and re-use your mask. Learn more here: smartairfilters.com/en/blog/reliable-n95-mask-manufacturers-suppliers/
When I first saw this video and without looking at the comments I thought this is going to open a hornets nest . People just love to argue today . Just chill . If you do have something to say , say it in a nice way and stop wanting to argue with everyone guys. This Country has gone in the toilet over the last 4 1/2 years .
What concerned about is Corona virus. Surprised did not mention by name. I do not know how size of Corona virus contrasts with other viruses. Do you? Thanks.
The function of the exhalation valve is to reduce the exhalation resistance of the protective mask. The medical protection shop is not allowed to set the exhalation valve because the opened exhalation valve may discharge the droplets or bacteria discharged from the wearer of the mask, which may threaten Surgery patient
Ishvi Chatterjee that valve allows you to expel your respiratory droplets out of the mask. so it is not the one you want to use for minimizing virus in the air. The point of these mask is to keep your respiratory droplets in the mask.
Paddy Are you aware of how many fake fraudulent Kn95 masks are being sold in United States? I’m just wondering if you know of a good test to make sure we have authentic real KN95 Mask’s. Someone on RUclips is saying water test is the best way to know for sure that you have an authentic KN 95. Basically they take water and Pour it in the inside of the mask and than hang the mask on something while the water sits inside of it. and if it’s a fake mask it will definitely leak water through and through The mask although it may take a little while. But a real authentic KN 95 will never leak water it is sealed. Do you think this test qualifies An authentic mask ?
@@will195 We're well aware of this issue. We've just written an article outlining our research on mask quality. We found that almost 50% of masks didn't meet the spec they claimed. Here's the article, and we'll have a video out soon! smartairfilters.com/en/blog/half-chinese-n95-face-mask-fail-standards-unreliable/
I’ve used both N-95 and KN95. The N-95 are way better at making a seal around the face... the KN95 lets tons of air in and out around the sides...so much so that the KN95 feels very much like a surgical mask. If I am in a high covid area I will NOT trust a KN95...I will only trust an N-95 or better, such as a P95. Prob is... after 7 months into this we the public still can not find these masks on our shelves.
This video, as well as many other resources, have dumbed-down the definition of what N-95 masks can do. Starting at around 0:30, the fellow states that "N-95 means it filters out 95% of particles". This is correct, but it is also incomplete. What he did NOT say is "N95 filters out 95% of particles, of 0.3 microns (or larger) in size". That has always been the proper and complete definition of N95 filtration - that the particles measured are 0.3 microns or larger. Many places, including Wikipedia, are using this less thorough, less accurate definition of 'N-95'. I speculate that the definition has been dumbed-down because viruses are much, much, much smaller than 0.3 microns. Viruses in and of themselves, are too small to be filtered effectively. The only way masks CAN protect us from viruses like the current one is by blocking/trapping micro-droplets common in exhaled air. By stopping these virus-bearing droplets (which they do) they prevent infection. But as for free-floating, non-droplet virus molecules? Not a chance. NO facemask stops them. There never has been a mask that can filter free-floating viruses, and there probably never will be.
Unfortunately, that’s not 100% right. The standard for N95 masks states that to be a P95, R95 or N95 mask it must have an efficiency ≥95%. You can find that by searching the official standard for ‘95%’ here: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170 There are also very strict requirements on the size of particles that should be tested. For the N95 mask, the standard specifies: “When testing N-series filters, a sodium chloride or equivalent solid aerosol … The sodium chloride test aerosol shall have a particle size distribution with count median diameter of 0.075±0.020 micrometer and a standard geometric deviation not exceeding 1.86 at the specified test conditions as determined with a scanning mobility particle sizer or equivalent.”. That’s a very long-winded way of saying “it uses sodium chloride that is 0.075 micrometers in size” (the COVID-19 coronavirus is roughly 0.06 - 0.14 micrometers). Hope this clarifies!
@@SmartAirFilters Sorry to have waited so long to reply, but it is actually you who have a misunderstanding. Soon I will return to explain where the misconceptions are..
I used both of them. 3M N95 masks fit to the face tightly as its loops run around your head. KN95 has loops only for ears. Breathing with KN95 is much easier as air through its fabric moves very easily. It may not filter as much as N95. KN 95 has exhale Valve. It may send unfiltered covid air from the patient into air.
Valves are not a requirement for KN95 or N95 masks, it's not part of the standard but up to the manufacturer to decide if they put a valve on or not. Here's a link to the N95 requirements that explains under what circumstances valves can be added to N95 masks: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.77
It makes sense to have a fit test requirement as a bad fit will definitely lower the level of efficacy/protection of any mask and also affect ease of breathing. Low ease of breath makes it more likely users will not wear their mask properly at all times often lowering it below their nose for example thus rendering the whole apparatus useless.
Get 5 of it, number them, and use them in order. So basically you use #1 on the 6th day, #2 on 7th day and so on. Remember to keep days mask away after days use for 5 days, virus wont survive that long over the mask surface, hence you don't need to sterilize it if you simply put it away for 5 days
They are normally designed to be single use only, but now the advice since there is such a shortage of them is that they can be used up to 5 times. Just make sure you leave 5 days between uses for any possible virus to deactivate. I have a lot so I rotate through them, storing used ones for up to a month or more before using them again. It is not ideal, since they are really meant to be disposable, but these are exceptional times, so yes, 5 times. A better option is the reusable silicone respirators with replaceable filters. They are hard to get, bulky, you will look like you're ready for the apocalypse or a riot, but they fit tighter, and the P100 filters are made such that they will last for the duration of the pandemic. Years before you need to change them if you're not using them in a dusty environment.
I shorten the ear straps by tying loops in them. This increases the tension and helps seal significantly. Also rounding the apex of the nose metal strap before adapting to the face reduces the gap that is often there. I don't know but I think that KN 95's probably would be equivalent to n 95's if they can be made to seal properly. I'm thinking about adding straps to the loops to go around the head similar to n 95 masks.
@Michael Himes I bought a Mexican made 5 count pack of KN95 at a Sam's Club there. They fit fine, offer a good seal where it meets the face, and is relatively comfortable to wear.
I have them and they seal just fine for me. It may depend on the shape of your face. I assume the KN-95 is designed with Chinese users in mind, and for that reason it could fit differently on European or American faces.
This video is terrible, and you got the most important part wrong. The N95 is the one that has a fit test, and that is IMPORTANT because KN95 masks almost always have the ear-loop design which fits more loosely and allows more air to flow around the mask. In the US, NIOSH has never approved an N95 mask with the ear-loop design. All of them have straps that go behind your back because that holds the mask more securely on your face and less air leaks out.
Great point, and it's good to see you questioning the claims! It seems backwards that the N95 standard wouldn't require a fit test but the KN95 one would. However that's the reality - but don't trust us, trust the actual data. Here's a link to the N95 standard, from the Code of Federal Regulations: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170 The regulations list only two tests called "particulate filter efficiency level determination" and "Airflow resistance tests". The 3M table linked to in the description above also lists 'NA' for row "Total inward leakage (TIL)* -tested on human subjects each performing exercise" - i.e. 'fit test'. That said, as we specify in the video - most organisations that use N95 masks DO require fit tests - the requirement is at the organisation level and not at the CFR level. It’s confusing, and in fact actually a mute point, since N95 are almost always fit-tested by the organisation anyway.
So.... how about a chart and video comparison between disposable surgical masks we have been using for 2 years, multi-layer cotton cloth masks w and w/out filters, etc. ?? :-)
Hi Nicki! Thanks for watching and for your feedback! We will take note of your request in filming our future videos here on RUclips! Meanwhile, here are articles from our blog to answer your question: smartairfilters.com/en/blog/can-masks-capture-coronavirus/ smartairfilters.com/en/blog/surgical-masks-surprisingly-effective-pm2-5/ smartairfilters.com/en/blog/comparison-mask-standards-rating-effectiveness/ smartairfilters.com/en/blog/diy-cloth-homemade-mask-protect-virus-covid-19/ Breathe safe!
I was wondering if you knew when it come to protecting against covid-19 infection whether a surgical mask that has BFE rating is better than a N95 that doesn't have a BFE rating, tecchnically isn't that just a dust musk. My understanding with covid you need a Surgical N95 like the 3M 1860 or 1870+ or softmed N95 particular respirator & surgical mask, is that right? Or do you not need a BFE rating when it comes to N95 and protecting against covid-19 (but you do need a N95 with BFE rating so surgical & N95 for hospital staff in Australia)?
If the mask allows dust to go through at a 4% failure rate the virus goes through with 100% efficiency what protection do you think you’re getting da. Lol. Masks don’t work
I did the water test on the kn95 masks and it failed it leaked in 20 seconds, can I still use the mask and will it protect me and to what mask is it now equivalent to, and by doing the water tests can it damage the mask and can u use it after that
Great question Jian. We've just published a follow up article answering this exact question! Check it out here: smartairfilters.com/en/blog/reliable-n95-mask-manufacturers-suppliers/
Smart Air thanks for the info. It’d be great if you guys could list a few places where we could get some and get ready for the 2nd wave. Isolation or lockdown are not for ever. The only defense we have got are masks. The report of two infected hairdressers didn’t spread the virus to their clients proved that masks are effective in fighting the virus. If I know where to get some, I’ll get them and donate to anyone who would be willing to wear one.
0:20 There are only thirteen stars on that United States flag. This is from 1801 and if it is when the us mask was made, then it has passed its expiration date for safe use. FAIL
You are sharp-sighted! Thanks for letting us know, we are learning! Actually, did you know, according to studies expired masks are still as effective as brand new ones? (not too sure about a 220 year-old one though!) You can read up on it here: smartairfilters.com/en/blog/do-n95-masks-really-expire/
Smart Air aims to clear the air not just physically, but also in your minds!
What are some things you wish to get our nerd scientists on the team to share about? Let us know here!
And don't forget to subscribe and hit the "bell" button!
(we do not spam random stuff, the air dirty enough. we keep your notifications clean as well!)
FIT TEST: The hospital where I worked in USA required me to be fit tested for N95 mask. This was to make sure I would be protected mainly from Tuberculosis, which was prevalent in our patient population. This was pre-COVID19. Maybe the hospitals cannot afford the FIT TEST requirement under the current states of emergency.
welcome to life...
I live in the US and from everything I’ve read the fit testing standard is the opposite of what you say in this video. N95 needs a fit test and kn95 does not. This is what is stated on the American dental association website as well.
You are right, that part of this video is incorrect.
Great point, and it's good to see you questioning the claims! It seems backwards that the N95 standard wouldn't require a fit test but the KN95 one would. However that's the reality - but don't trust us, trust the actual data.
Here's a link to the N95 standard, from the Code of Federal Regulations: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170
The regulations list only two tests called "particulate filter efficiency level determination" and "Airflow resistance tests". The 3M table linked to in the description above also lists 'NA' for row "Total inward leakage (TIL)* -tested on human subjects each performing exercise" - i.e. 'fit test'.
Remember, this doesn't mean that specific associations like the American dental association don't require fit tests for their organisations or teams! It just means that to call a mask an N95 mask, it doesn't need to have gone through a fit test before being certified.
@@christinekotov3249 This is a really confusing point about these mask certifications, check the comment below, Christine!
@@SmartAirFilters I am a NYS registered nurse and that is not the case in these hospitals. In order for an N95 mask to be fully effective, it must be fit tested.
& KN95 masks are NOT fit tested.
This is great, super clear and helpful. Thanks!
Are you Hindu?....
@@bhanupratapsingh7911 hh
It’s easier to breathe in the k95 mask
Excellent point Lucian!
You mean KN95? Or does K95 exist a separate model?
Yes it is
Finally a good easily understandable explanation but from what I gather from it the KN95 not as comfortable but much safer more tested for virus !
That may be the case! However note that N95 and KN95 masks can come in many different shapes and sizes, so (where possible) it's worth checking a few different masks to find the one that fits you best
The number 95 does not mean that the mask filters out 95% of particles. It means that it can filter out up to 95% of particles, not stating any specific size of particles. This is not the same as the statement made in the video, stating that it filters out 95% of particles. Now, it is also important to understand that the size of particles is not specified. Clearly, it can filter out larger particles more reliably than small particles.
Great follow up Frankentronics, however that’s not 100% right. The standard for N95 masks states that to be a P95, R95 or N95 mask it must have an efficiency ≥95%. You can find that by searching the official standard for ‘95%’ here: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170
There are also very strict requirements on the size of particles that should be tested. For the N95 mask, the standard specifies:
“When testing N-series filters, a sodium chloride or equivalent solid aerosol … The sodium chloride test aerosol shall have a particle size distribution with count median diameter of 0.075±0.020 micrometer and a standard geometric deviation not exceeding 1.86 at the specified test conditions as determined with a scanning mobility particle sizer or equivalent.”.
That’s a very long-winded way of saying “it uses sodium chloride that is 0.075 micrometers in size” (the COVID-19 coronavirus is roughly 0.06 - 0.14 micrometers).
Good to know. Thank you!
GREAT INFO!!!🤓
Thanks Janice! You can also find wide range of information about air pollution, covid-19, masks, air purifiers & monitors here: smartairfilters.com/en/clean-air-blog/ . Breathe safe!
Really valuable info 👍. Subbed
I find it disappointing that in the UK the government has stopped hardware stores selling dust masks to the public so i now have to buy a Chinese standard mask online at twice the price of what my local hardware store was selling dust masks 3 months ago. Annoying in Scotland where the government strongly recommends a face covering but wont give them out free to the public
Any masks would be great. The U.S feels the same way!
That 13-star US flag that you displayed has me worried that I’ve fallen into a parallel universe.
🤣🤣🤣 we hope not!
Would have been useful to have a quick demo of the fit test. I'm guessing it's not too complicated
Thanks for watching and for the feedback, Ernie! Smart Air aims to educate and raise awareness to more people using our platform. We will take note your feedback so we can achieve our goal of making our informational contents more understanding and accessible for everyone! Breathe safe! ☺
I worked for a Class 1 railroad and we had to be fit tested every year on an N95 respirator/mask
Whether it is N95 or KN95, during this period, if not properly worn or not worn, the risk of infection will be higher. Both masks have a certain protective effect.
but I dont feel KN95 is as fit as N95. KN95 feels like not fully sealed
People fit differently into each mask! But glad that N95 fits you well.
Check out this article to find out the steps to check whether your masks fits well! smartairfilters.com/en/blog/poor-mans-fit-test/
Very informative. Thanks!
I always found n95 harder to breathe through.. strange
We actually have done tests on whether N95 would limit our oxygen intake and results have shown that O2 levels actually remains relatively similar even with moderate levels of exercise!
You can take a look at our data from the link here: smartairfilters.com/en/blog/n95-face-mask-limit-breathe-oxygen/
@@SmartAirFilters where’s misinformation label for this lie
Thanks
Thanks for watching, Porsher22! You can also find wide range of information about air pollution, covid-19, masks, air purifiers & monitors here: smartairfilters.com/en/clean-air-blog/ . Breathe safe!
Right to the point 👍
Great vid. How can you choose among the different 3M N95? They have plenty of N95 with different types. Looking forward to hearing about this.
Go to 3M site and look at each one's functionality. For example one type is made to filter out sawdust for wood workers. Another is made to filter out vapour for spray painters so it's water resistant.
You don’t necessarily have to buy from 3M, either. There are other US brands that make N95s for medical professionals. Brand doesn’t matter so much as where it was produced and quality.
Great info! Thanks!
I don’t know whether wearing a standard mask gives you 100% protection because I was wearing two masks of three ply layers together each time when I step out of house and followed maximum hygiene practices but I was infected a General viral flu a week ago.
That's the problem, because you wore 2 masks, it hindered what the singel mask should have done.
It's because surgical mask is not fitted to your face, so aerosols could slip through space around your mask, it could block droplets only, but not aerosols
@@Justnn "In fact, MASKS don't work at all" nonsense. Numerous studies to show otherwise.
*n95 vs kinda n95*
I use a kn95 during work in construction where there is tons of dust but I’m just gonna switch to a whole respirator
Glad to hear that, take care and breathe safe! 😊
Are the KN95 masks washable?
No
Superb video
Great info. Thanks👍
Thanks brother !
The war has brought me here..
Hey Smart Air: You need to go through the comments and delete the idiots and spammers. Not all viewers can tell what's real, so it falls on you to protect them.
Thanks for the hint! We've just gone through and cleared through some of the spam comments. We hope the video and comments section can stay informative and useful to our viewers
I believe an N-95 respirators are tight fitting masks. Fit Testing is required by OSHA. KN95 masks are not tight fitting and do not require fit testing.
Great, thanks a lot.
😇👍
US do fit mask tests
Hey!I have a KN95 that has a yellow filter,i looked on the package and it is real,(its on the 2006 chinese standard) is it still as good as a normal KN95 masK?
Hi Antonio! Three randomized studies have found surgical masks are just as effective as N95 masks at preventing virus transmission. They hypothesize the main reason for this is that any mask can reduce the hand-to-face contact, although we don’t know this for sure. You can check more of the data here: smartairfilters.com/en/blog/comparison-mask-standards-rating-effectiveness/
Which one do you think is better for public use? KN 95 mask or surgical mask? Thanks
Data shows that surgical masks and N95/KN95 masks are just as effective as each other at reducing the spread of viruses. So it really comes down to a matter of personal choice. Surgical masks may be more comfortable over a longer period of time, and lead to less touching/removing of the mask. However N95/KN95 masks may be slightly better at actually filtering viruses. More info: smartairfilters.com/en/blog/n95-mask-surgical-prevent-transmission-coronavirus/
Smart Air Thanks for responding! I am also curious about effectiveness of counterfeit KN 95 masks for general public use. Im pretty sure theres a high number of counterfeit kn 95 or surgical masks going around niw
@@jl1702 Back in June of this year (2020) we tested a lot of KN95 and N95 masks, and found many to be sub-par. There's more info on those tests here: smartairfilters.com/en/blog/half-chinese-n95-face-mask-fail-standards-unreliable/
Great Video
Glad you enjoyed it, breathe safe!
N95 requires a fit test for workers in workplace or when otherwise requested. If mask says NIOSH, i fit test is required. KN 95 not so
Difference is price....
Beggars can't be choosers.... KN95 all the way.
😂
Nicely done.
My KN95 has see through lines on them. Is that normal? Why would they have that?
These are common on lots of KN95 masks, and are a result of the manufacturing process to make the mask. These small parts of the mask may have lower filtration efficiencies, however the rule is that KN95 masks must filter 95% of particles overall, so even if there are small areas that don’t quite reach 95%, the mask as a whole should.
More info: smartairfilters.com/learn/smart-air-knowledge-base/why-holes-my-n95-kn95-masks/
Smart Air+ My local GNC is selling KN-95 Masks, but not N-95 masks. I might have to see a Doctor that resides in a local hospital and I was wondering, which filters out the Covid-19 Virus better KN-95 Masks or N-95 Masks? I would really appreciate it if you could kindly respond to my question. Thank you for reading this and stay well as much as stay safe:).
Wanting One Angel Didn’t he essentially cover this in the video? In terms of filtration they’re pretty much equivalent.
If you want to keep out dust not a problem if you want to keep Out a virus that’s free-floating you’re out of luck. Masks don’t work
Damn I bought the wrong mask KN95 I met too buy N95
Good video 👍🏽👍🏽
Yhose NK masks come in one size correct? What use is a fit test than, i mean everybody's face is different
Exactly right Rombout. Fit tests are useful as they give an *indication* of how well a mask will fit on people's faces, but that's why a controlled test of the mask's filtration efficiency is also important. This is the one that's required for both N95 and KN95 tests.
Note that not all KN95 masks are exactly the same. Different manufacturers may produce masks with slightly different shapes and fits, to if possible, it's worth trying out a few different masks to find which one fits you best.
Here's how to perform what we call "the poor man's fit test" smartairfilters.com/en/blog/poor-mans-fit-test/
Do anybody know If kn95 masks 😷 “with breathing valvet” are safe? 🤔 , I heard masks with valvet don’t protect other people but what about if they are kn95 with valvet? 🤔
They're not safe for others
Hello Angel, we’ve run tests on masks with valves, there’s no increase in risk for the person wearing the mask. (Learn more here: smartairfilters.com/learn/smart-air-knowledge-base/masks-valves-less-effective/ )
But you’re right: it increases the risk of viruses spreading for other people if the person wearing the mask with the valve is infected. That’s because the valve will let our water droplets back into the air, without filtering.
If you’re concerned about virus transmission, then it’s best to avoid masks with valves.
can these masks be used more than once ?
N95 and KN95 masks were originally intended as single-use masks, but the current circumstances are meaning many people are having to re-use the masks. We've covered the data on how best to disinfect and re-use your mask. Learn more here: smartairfilters.com/en/blog/reliable-n95-mask-manufacturers-suppliers/
N95 and KN95 is such a huge difference. Am I surprised? Not at all. The KN95 is so much lower in quality.
When I first saw this video and without looking at the comments I thought this is going to open a hornets nest . People just love to argue today . Just chill . If you do have something to say , say it in a nice way and stop wanting to argue with everyone guys. This Country has gone in the toilet over the last 4 1/2 years .
What concerned about is Corona virus. Surprised did not mention by name. I do not know how size of Corona virus contrasts with other viruses. Do you? Thanks.
I thought this was Beck.
N95 masks do require a fit test. They are respirators under OSHA
Am I the only one who thought: okay, it will filter out virus, bacteria, and truffles?
That’s why we’re here to share simple, data-backed science to protect more air breathers! 😊
Kn95s are also more faked. Make sure you always buy from a reputable dealer
I thought K was for Korean 🤔
Sir some n 95 mask are having a cap like filter but some n 95 are not ..what's the difference between both?? Kindly reply soon..
The function of the exhalation valve is to reduce the exhalation resistance of the protective mask. The medical protection shop is not allowed to set the exhalation valve because the opened exhalation valve may discharge the droplets or bacteria discharged from the wearer of the mask, which may threaten Surgery patient
Ishvi Chatterjee that valve allows you to expel your respiratory droplets out of the mask. so it is not the one you want to use for minimizing virus in the air. The point of these mask is to keep your respiratory droplets in the mask.
现在有很多kn95的便宜货😂然而我听某口罩生产者说, 还有做假证的😅
的确。。。现在的生产家都挺可怕的😅
@@SmartAirFilters 淘宝上铺天盖地的不规范的货, 哭了
What happened to the flags... 🇺🇸 🇨🇳
Play at 2x speed 🤣🤣🤣
The difference is that most Freemasons wear them
You look a bit like Beck.
Paddy apologises for his messy hair, this lockdown is really affecting his ability to get a hair cut 🤣🤣🤣
Paddy Are you aware of how many fake fraudulent Kn95 masks are being sold in United States? I’m just wondering if you know of a good test to make sure we have authentic real KN95 Mask’s. Someone on RUclips is saying water test is the best way to know for sure that you have an authentic KN 95. Basically they take water and Pour it in the inside of the mask and than hang the mask on something while the water sits inside of it. and if it’s a fake mask it will definitely leak water through and through The mask although it may take a little while. But a real authentic KN 95 will never leak water it is sealed. Do you think this test qualifies An authentic mask ?
@@will195 We're well aware of this issue. We've just written an article outlining our research on mask quality. We found that almost 50% of masks didn't meet the spec they claimed. Here's the article, and we'll have a video out soon!
smartairfilters.com/en/blog/half-chinese-n95-face-mask-fail-standards-unreliable/
@@junlimited 😂 first time! This was Paddy's lockdown-hair. Check out our latest videos to see his new haircut. Which do you prefer? 😄
I’ve used both N-95 and KN95. The N-95 are way better at making a seal around the face... the KN95 lets tons of air in and out around the sides...so much so that the KN95 feels very much like a surgical mask. If I am in a high covid area I will NOT trust a KN95...I will only trust an N-95 or better, such as a P95. Prob is... after 7 months into this we the public still can not find these masks on our shelves.
@@SmartAirFilters great response!
When i got My 2st Vaccine I Used The Kn95 Mask
This video, as well as many other resources, have dumbed-down the definition of what N-95 masks can do. Starting at around 0:30, the fellow states that "N-95 means it filters out 95% of particles". This is correct, but it is also incomplete. What he did NOT say is "N95 filters out 95% of particles, of 0.3 microns (or larger) in size". That has always been the proper and complete definition of N95 filtration - that the particles measured are 0.3 microns or larger.
Many places, including Wikipedia, are using this less thorough, less accurate definition of 'N-95'.
I speculate that the definition has been dumbed-down because viruses are much, much, much smaller than 0.3 microns. Viruses in and of themselves, are too small to be filtered effectively. The only way masks CAN protect us from viruses like the current one is by blocking/trapping micro-droplets common in exhaled air. By stopping these virus-bearing droplets (which they do) they prevent infection. But as for free-floating, non-droplet virus molecules? Not a chance. NO facemask stops them. There never has been a mask that can filter free-floating viruses, and there probably never will be.
Unfortunately, that’s not 100% right. The standard for N95 masks states that to be a P95, R95 or N95 mask it must have an efficiency ≥95%. You can find that by searching the official standard for ‘95%’ here: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170
There are also very strict requirements on the size of particles that should be tested. For the N95 mask, the standard specifies:
“When testing N-series filters, a sodium chloride or equivalent solid aerosol … The sodium chloride test aerosol shall have a particle size distribution with count median diameter of 0.075±0.020 micrometer and a standard geometric deviation not exceeding 1.86 at the specified test conditions as determined with a scanning mobility particle sizer or equivalent.”.
That’s a very long-winded way of saying “it uses sodium chloride that is 0.075 micrometers in size” (the COVID-19 coronavirus is roughly 0.06 - 0.14 micrometers).
Hope this clarifies!
Thank you!!🍼 you’re going to have to milk it down further for the unwoke lol
@@SmartAirFilters Sorry to have waited so long to reply, but it is actually you who have a misunderstanding. Soon I will return to explain where the misconceptions are..
@@k.g.442 please explain where the misconception is.
I used both of them. 3M N95 masks fit to the face tightly as its loops run around your head. KN95 has loops only for ears.
Breathing with KN95 is much easier as air through its fabric moves very easily. It may not filter as much as N95.
KN 95 has exhale Valve. It may send unfiltered covid air from the patient into air.
Valves are not a requirement for KN95 or N95 masks, it's not part of the standard but up to the manufacturer to decide if they put a valve on or not. Here's a link to the N95 requirements that explains under what circumstances valves can be added to N95 masks: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.77
It makes sense to have a fit test requirement as a bad fit will definitely lower the level of efficacy/protection of any mask and also affect ease of breathing. Low ease of breath makes it more likely users will not wear their mask properly at all times often lowering it below their nose for example thus rendering the whole apparatus useless.
I always use N95 just to be sure :) Those offered by Protect Life have been really helpful
I heard that a lot of KN95 masks are counterfeit. So yeah, N95 are better and those from Protect Life are very good
and where do you get the Protect Life N95 masks from?
@@davidblaine1994 I got mine from FirstAidKitSurvival . com and they arrived in 2 days :)
Because N95s are available everywhere now at a very reasonable price.
You basically told us absolutely nothing. Waste of time.
So, can I reuse any of this masks? If so, how many days? Or times? Or hours in total? :O
Yes...he missed that vital information.
Get 5 of it, number them, and use them in order. So basically you use #1 on the 6th day, #2 on 7th day and so on. Remember to keep days mask away after days use for 5 days, virus wont survive that long over the mask surface, hence you don't need to sterilize it if you simply put it away for 5 days
Check out our article on how to reuse masks. More info here, Mishi! smartairfilters.com/en/blog/disinfect-clean-n95-mask-virus-coronavirus/
Thanks!
They are normally designed to be single use only, but now the advice since there is such a shortage of them is that they can be used up to 5 times. Just make sure you leave 5 days between uses for any possible virus to deactivate. I have a lot so I rotate through them, storing used ones for up to a month or more before using them again. It is not ideal, since they are really meant to be disposable, but these are exceptional times, so yes, 5 times.
A better option is the reusable silicone respirators with replaceable filters. They are hard to get, bulky, you will look like you're ready for the apocalypse or a riot, but they fit tighter, and the P100 filters are made such that they will last for the duration of the pandemic. Years before you need to change them if you're not using them in a dusty environment.
I only wear n99 or ffp3 masks
Only the N95s do
I just bought some KN 95 and it fits terribly. Allows tons of air in the sides and the nose bridge.
I shorten the ear straps by tying loops in them. This increases the tension and helps seal significantly. Also rounding the apex of the nose metal strap before adapting to the face reduces the gap that is often there. I don't know but I think that KN 95's probably would be equivalent to n 95's if they can be made to seal properly. I'm thinking about adding straps to the loops to go around the head similar to n 95 masks.
@Michael Himes I bought a Mexican made 5 count pack of KN95 at a Sam's Club there.
They fit fine, offer a good seal where it meets the face, and is relatively comfortable to wear.
I have them and they seal just fine for me. It may depend on the shape of your face. I assume the KN-95 is designed with Chinese users in mind, and for that reason it could fit differently on European or American faces.
Thanks for enlightening otherwise confusing mask
This video is terrible, and you got the most important part wrong. The N95 is the one that has a fit test, and that is IMPORTANT because KN95 masks almost always have the ear-loop design which fits more loosely and allows more air to flow around the mask. In the US, NIOSH has never approved an N95 mask with the ear-loop design. All of them have straps that go behind your back because that holds the mask more securely on your face and less air leaks out.
Great point, and it's good to see you questioning the claims! It seems backwards that the N95 standard wouldn't require a fit test but the KN95 one would. However that's the reality - but don't trust us, trust the actual data.
Here's a link to the N95 standard, from the Code of Federal Regulations: www.govinfo.gov/content/pkg/CFR-2004-title42-vol1/xml/CFR-2004-title42-vol1-part84.xml#seqnum84.170
The regulations list only two tests called "particulate filter efficiency level determination" and "Airflow resistance tests". The 3M table linked to in the description above also lists 'NA' for row "Total inward leakage (TIL)* -tested on human subjects each performing exercise" - i.e. 'fit test'.
That said, as we specify in the video - most organisations that use N95 masks DO require fit tests - the requirement is at the organisation level and not at the CFR level. It’s confusing, and in fact actually a mute point, since N95 are almost always fit-tested by the organisation anyway.
So.... how about a chart and video comparison between disposable surgical masks we have been using for 2 years, multi-layer cotton cloth masks w and w/out filters, etc. ?? :-)
Hi Nicki!
Thanks for watching and for your feedback! We will take note of your request in filming our future videos here on RUclips!
Meanwhile, here are articles from our blog to answer your question: smartairfilters.com/en/blog/can-masks-capture-coronavirus/
smartairfilters.com/en/blog/surgical-masks-surprisingly-effective-pm2-5/
smartairfilters.com/en/blog/comparison-mask-standards-rating-effectiveness/
smartairfilters.com/en/blog/diy-cloth-homemade-mask-protect-virus-covid-19/
Breathe safe!
I was wondering if you knew when it come to protecting against covid-19 infection whether a surgical mask that has BFE rating is better than a N95 that doesn't have a BFE rating, tecchnically isn't that just a dust musk. My understanding with covid you need a Surgical N95 like the 3M 1860 or 1870+ or softmed N95 particular respirator & surgical mask, is that right? Or do you not need a BFE rating when it comes to N95 and protecting against covid-19 (but you do need a N95 with BFE rating so surgical & N95 for hospital staff in Australia)?
If the mask allows dust to go through at a 4% failure rate the virus goes through with 100% efficiency what protection do you think you’re getting da. Lol. Masks don’t work
I am in the USA and I am fit tested for the N95 every year
I did the water test on the kn95 masks and it failed it leaked in 20 seconds, can I still use the mask and will it protect me and to what mask is it now equivalent to, and by doing the water tests can it damage the mask and can u use it after that
most likely you buy fake KN95. my standard KN95 succesfully pass the test.
The part that goes around the ears is too small/or short. When I put it on around the ears, the mask slips off quite easily. Any suggestions?
hmm the stars on the flags are broken
Thank you very much for the clarification.
thanks!
The problem is how do you know they meet the standard or not fake ones?
Great question Jian. We've just published a follow up article answering this exact question! Check it out here: smartairfilters.com/en/blog/reliable-n95-mask-manufacturers-suppliers/
Smart Air thanks for the info. It’d be great if you guys could list a few places where we could get some and get ready for the 2nd wave. Isolation or lockdown are not for ever. The only defense we have got are masks. The report of two infected hairdressers didn’t spread the virus to their clients proved that masks are effective in fighting the virus. If I know where to get some, I’ll get them and donate to anyone who would be willing to wear one.
This is one of the few videos on masks that doesn't send me to website that sells masks.
N95 is certified by NIOSH...who dose that in case of KN95?
0:20 There are only thirteen stars on that United States flag. This is from 1801 and if it is when the us mask was made, then it has passed its expiration date for safe use. FAIL
You are sharp-sighted! Thanks for letting us know, we are learning!
Actually, did you know, according to studies expired masks are still as effective as brand new ones? (not too sure about a 220 year-old one though!)
You can read up on it here: smartairfilters.com/en/blog/do-n95-masks-really-expire/