November 26, 2022
How to choose the suitable air purifier for you?
When it comes to purifying the air in your room, an air purifer needs to do 2 things. It needs a means of removing harmful particles and gases--typically done by a set of filters--as well as the ability to circulate most of the air in the room through those filters multiple times per hour using a fan. You'll want to choose a device that does both of those jobs well.
The EPA reommends that all the air in your room be processed through your air purifier five times per hour. To help you determine if a given air purifier will work for your room, most manufacturers list a maximum or recommended room size, and some will even mention how many air exchages for the space per hour.
That's good guideline, but we recommend you also look for CADR (Clean Air Delivery Rate) ratings for smoke, dust and pollen. CARD ratings are better because they're independent of room size. The CADR number tells you how quickly the air purifier removes 100% of a given pollutant-like smoke, dust or pollen--from a cubic foot air per minute. The higher the rating, the larger the space an air purifier can clean or the more times per hour it can change the air.
