pm 2.5 filters - copy
pack of 10 pm2.5 filters to use with your cotton mask
PM2.5 filter is a disposable insert that improves a mask's filtration effectiveness, against the smallest aerosolized particles. A certified pm2.5 filter used with a fitted cloth mask can block the vast majority of airborne particulates, including fine aerosols. When evaluating breathable, reusable solutions for everyday use, a pm2.5 filter + mask isone of the most protective options available.