KN95 is an industry-standard and means that the mask provides the intended effectiveness of filtering 95 percent of particles with a mass median diameter of 0.3 micrometers. 
 
This listing is for 100 non-imprinted emergency masks
Color: White
Material: Non-woven fabric
Size: 7" wide x 4.3" High
Production: 2-3 days
Shipping: 2-4 days