KN95 Protective Mask - 5 Masks per package

High-grade Protective Masks. Let us be real. The Masks people are using are NOT WORKING. A recent study measured Filter efficiency across a wide range of small particle sizes (0.02 to 1 µm) at 33 and 99 L/min. All the cloth masks* and materials had near zero efficiency at 0.3 µm, a particle size that easily penetrates into the lungs. OUR APPROVED KN95 MASKS HAVE TESTED AT ALMOST 98% EFFICIENT FOR .3 MICRON (K)N95 respirators (Like Ours) had efficiencies greater than 95% (as expected). T-shirts* had 10% efficiency, Scarves* 10% to 20%, Cloth masks* 10% to 30%, Sweatshirts* 20% to 40%, and Towels* 40%. Another study evaluated 44 masks, respirators, and other materials with similar methods and small aerosols (0.08 and 0.22 µm). (K)N95 FFR filter efficiency was greater than 95%. Medical masks - Three-Ply – 55% efficiency General masks – 38% and Handkerchiefs – 2% (one layer) to 13% (four layers) efficiency. Filtering face-piece respirators (FFR), which are sometimes called dis