The PM2.5 replaceable filter is composed of 2 layers of non-woven fabric, 2 layers of melt-blown cloth and 1 layer of activated carbon cloth. 5 layer for better protection.
The disposable air filter replacement contains efficient activated carbon, effectively preventing airborne particles from entering your mouth and face, but allowing you to breath normally.
The PM2.5 replaceable filter is perfect for gardening, running, cycling, travel, household, schools and other outdoors activities etc.