- Medical grade filters tested to medical professional standard ASTM F2100-11, level 2
- Over 99.99% bacteria filtration efficiency down to a size of .1 microns
- Extremely low breathing resistance ensures comfort as well as protection
- Recommended for air travelers, urban commuters, or those needing immune support against airborne pathogens and large droplets which can be released through talking, coughing, or sneezing
- All test method acceptance criteria were met in compliance with US FDA good manufacturing practice (GMP) regulations 21 CFR parts 210, 211, and 820
- Recommended to replace after each use
For use only with O2SafeAir masks. Please ensure to select the same size filter as your mask frame for proper fit.