PM2.5 protects against odors, dust, gas, bacteria, smoke, pollution, pollen, etc. Our filters have 5 layers of protection.
The 1st and 5th layers are the outer layers of the filter that you see. They're made of anti-stick cloth that filters out particulate matter with mass median aerodynamic diameter of more than 10 micrometers(microns)
The 2nd and 4th layers are your non-woven(spunbonded) cloth, which filters harmful particles of more than 2.5 microns.
The middle layer is your activated carbon filter, filtering most of the remaining particles more than 0.5 microns.
Material: PP anti-stick cloth, non-woven meltblown cloth, activated carbon cloth
For optimal usage, we suggest replacement of filters at least once a week if commuting in non crowded places.
Package contains 5packs of 2pcs filter=10pcs
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