The PM2.5 Activated Carbon Mask FIlter 10 Pack is for use with compatible face coverings that take charcoal filters.

Non-woven, active carbon cloth filter.
Conforms to standards GB2626-2006.
Spunbond cloth filters micron-level dust (particulate matter 2.5 microns)
Reduces dust, particulates and allergens such as haze, dust, pollen and motor vehicle exhaust emissions.
Recommended to replace filter every 1 to 3 days, depending on use.
Important - 1 unit = 1 pack of 10 mask filters.
Non-returnable.
Disclaimer: This filter is designed to aid defence against the spread of infection. It makes no assurances that it can prevent transmission or infection of disease or viruses. It is not a medical or clinical mask and should not be used under any circumstances where infection level is high or it could be exposed to high level heat sources or combustible substances.
Ideal For use with the PR796 Washable 3-Layer Face Mask. PM2.5 Activated Carbon Mask FIlter 10 Pack