most of those are scams. 1- u need a minimum of 7x air changes an hour, those dont come close to that. 2- the faster the motor speed the worse the filter get, possibly to the point of uselessness, so a huge size of overall filter/machine is a must plus thickness of activated carbon. 3- the claimed cadr is from highest speed which is typicaly unusable jet engine plus my previous point, 1 level down from highest settings is typicaly half the specs.
![Kumamoto Masters Japan 2024 | Gregoria Mariska Tunjung (INA) [5] vs. Akane Yamaguchi (JPN) [2] | F](http://i.ytimg.com/vi/EIjZybhsWqA/mqdefault.jpg)
When I spray my hair the AQ light turns red.
most of those are scams.
1- u need a minimum of 7x air changes an hour, those dont come close to that.
2- the faster the motor speed the worse the filter get, possibly to the point of uselessness, so a huge size of overall filter/machine is a must plus thickness of activated carbon.
3- the claimed cadr is from highest speed which is typicaly unusable jet engine plus my previous point, 1 level down from highest settings is typicaly half the specs.