B2 Filters are rated for filtration down to 0.1 micron particles (that’s 100 nanometers). That’s much smaller than your average sneeze or piece of dust. We have you covered for all of the tiny particles known as PM10 and PM2.5.
B2 Filters were put through precise filtration efficiency and airflow resistance testing at the University of Minnesota Department of Mechanical Engineering. Using a size range of particles from 30 to 300 nm, we are able to understand filter performance down to the smallest detail.
B2 Mask is designed for everyday use at home and in the workplace. It was designed according to requirements set out by NIOSH and the FDA in 42 CFR 84, though it is not currently approved nor is it a medical device. Our filter material has been tested as >99% efficient for bacterial and viral filtration (ASTM F2101). However this test is not as strict as the requirements set by NIOSH for particle filtration.
A well-sealed mask is a critical part of protection. The patent-pending facepiece flexes to your face so that all air coming in and out of your mouth and nose goes through our high-efficiency filters. Sign up here to hear when more sizes are available.
B2 Filters work in both directions, which means that both you and those around you are protected. There are no valves in the B2 Mask, only highly efficient, breathable filters.