PM2.5 Activated Carbon Filter 10 pack



– Five layer filtration protection made of activated carbon, non-woven and melt-blown filter cloth
– Keeps away a range of airborne contaminants and hazards including dust, seasonal allergies, smoke, pollution, ash, gardening pollen, micron-level dust and other harmful substances
– Easy to use, place PM2.5 filter in the filter opening of the mask and replace every week
– Size: 4.72 x 3.15 inches (for adult), compatible with most adult masks

PM2.5 Filter 5 Layers:

1) Non-woven cloth filters micron-level dust
2) Melt-blown cloth filters industrial pollutants, car exhaust, smoke and pollen allergens
3) Activated carbon cloth filters micron-level dust
4) Melt-blown cloth filters smaller materials
5) Non-woven cloth filters various harmful substances

Designed to be used with our Cotton Mask with Filter Pocket

Name Range Discount
# of 10 PACKS 5 - 9 5 %
# of 10 PACKS 10 - 19 10 %
# of 10 PACKS 20 - 100 15 %


When combined with a fitted adjustable cotton masks, PM2.5 filters can block the vast majority of airborne particulates, with significantly less inhalation resistance than a sealed n95/kn95 respirator. In laboratory testing,  cotton masks + PM2.5 filters restricted inhalation by less than than 71 Pa, less than 25% the max inhalation resistance of a NIOSH-certified N95 respirator

A fitted face mask with a PM2.5 filter offers a high degree of filtration from particulates and aerosols. The PM2.5 name comes from these filters’ original use as protection against Particulate Matter 2.5, the smallest and most dangerous form of air pollution.  Aerosol particulates that may harbor viruses are much smaller than most particulate matter, but research has shown a PM2.5 filter can capture nanoparticles similar size with a high degree of efficiency (approx. 95%), and lab tests show a PM2.5 filter with a properly-fitted cloth mask can reduce total airborne particulates by as much as 90%.

FYI: pm2.5 filters provide both mechanical and electro-static protection. They don’t lose effectiveness so much as become clogged over time, so we recommend using them for a total period of between 16-24 hours of active use, and around 40 hours of seated use. Store unused filters in a dry, dark place to maximize shelf life.