What are the B2 Filters made of?

What are the B2 Filters made of?

The B2 Filter Original contains meltblown and electrostatically-charged polypropylene.

The B2 Filter Lite contains electrostatically-charged polypropylene.

Read the B2 Filter Technology Review for detailed performance information and testing done at the University of Minnesota. 

B2 Filter comparison

    • Related Articles

    • What does the B2 Mask filter?

      B2 Filters remove 99.6 - 98.3% of airborne particles down to .1 micron at normal breathing rates. 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. This includes ...
    • What is the B2 Overlay made of?

      B2 Overlay Original The B2 Overlay Original is made of lightweight performance mesh that keeps the B2 Mask secure on your face without interfering with your breathing. The around-the-head design avoids irritation around the ears. The overlay is ...
    • What material is the B2 Mask made of?

      The facepiece of the B2 Mask is made of soft, FDA-compliant TPU and Polypropylene that conform to your face shape for a protective, anti-fog seal.
    • Which filter is best for you?

      B2 Filter Original For maximum protection. Ideal for close contact with the public, wildfire smoke, pollution and other high-risk environments. Removes 99.6%-98.3% of common pollutants down to 0.1 micron, under normal breathing conditions. Change at ...
    • Is the B2 Mask NIOSH certified?

      B2 Mask is designed for everyday use at home and in the workplace. While it is not a medical device, it was designed according to requirements set out by NIOSH and the FDA in 42 CFR 84. We are planning a path to regulatory approval, but are not ...