KN99 face masks has 4 layers of protection with copper-infused fabric on the outside first layer. Our face masks, unlike others, are reusable, washable, and destroy the bovine coronavirus by 99.99% with the same effect each and every time.
This Copper-infused KN99 face mask has been tested to GB 2626-2006 respiratory testing standards and showed that the face mask’s filter more than 99% of airborne particles equivalent to KN99.
No returns. All sales are final.