Our universal face mask filters are far superior than the Chinese PM2.5 filters saturating the market.
We produce our filters from high-quality HEPA-11 filter material. HEPA H11 grade filters with a rating of 99.97 filtration @0.3 microns.
THESE OUR NOT THE PM2.5 FILTERS COMING OUT OF CHINA.
Our material is sourced directly from the manufacturer (USA manufacturer) and converted using our state of the art CNC cutter.
Dimensions are 5" x 4". And simply slide into your mask filter pocket.