These layered KN95 mask covers mouth,nose,and jaw. Provide a physical barrier and help prevent the direct penetration of Pathogens Micro-Organism, Fluid and particles. Non-sterile, not for invasive surgical procedures.
How to Use: Unpack mask. Curve Nose wire to securely wrap around nose. Then, unfold and extend mask so full mouth and jaw is covered.
(Read Package instruction to see how to perform negative and positive pressure test)