Halo Life Masks

HALO Nanofilters proved effective at capturing over 99% of airborne particulates and pathogens down to 0.1 microns. By comparison, the Covid-19 virus measures approximately 0.125 microns in diameter.

These masks have been tested to meet the new standards of filtration efficiency and airflow resistance of ASTM standard F3502-21.

 

Happy Masks

Happy Masks block over 99.9% of particulate matter (PM) 10, 2.5, and 0.3.

 

Ministry of Supply

Ministry of Supply mask filters have been independently tested by Nelson Labs using an ASTM standard for filtration media to provide higher than 95% Bacterial Filtration Efficiency (BFE).

 

Honeywell

Honeywell masks have been tested to demonstrate that they block ≥ 98% of 0.3-micron-sized particles (BFE) and 0.1-micron-sized particles (PFE)

 

These masks, on their own, have the CDC-recommended amount of layers and filter designed to keep you safe. If you still want an extra peace of mind, you could wear a second mask under them.