USA DES PAT 80.835 USA PAT 1,859,772 MADE IN THE U.S.A." ITEM NOTES: This is from a lighters, ashtray, and tobacco collection which we will be listing more of over the next few months
Its designed to capture PM2.5 particles 2.5 microns in diameter and above, not the 0.3-micron HEPA standard
Ecofriendly and natural food products are seen as safer for health, says lead author Anna Epperson, a postdoctoral fellow with the Stanford University Prevention Research Center
This makes it the ideal companion for frequent travelers or heavy users who need a device capable of lasting one to two full days without ever seeing a charging cable
It features the brands trademarked HEPASilent filter with five layers of filtration, which claims to capture 99.97% of airborne particles, like pollen, dust and smoke, down to 0.1 microns