KN95 Protective Mask is a respiratory protective device designed to achieve a very close facial fit and very efficient filtration of airborne particles includes PM2.5 dust and bacteria/virus / Coronavirus Disease 2019 (COVID-19). The 4-ply foldable face mask has a filtration efficiency of greater than/equal 95%, to protect against microns greater than 0.3 in. size, effectively protecting respiratory health. The masks help prevent the spread of germs and protect yourself from airborne particles and allergens.
From a technical bulletin from 3M™, they confirm that “it is reasonable to consider China KN95….as equivalent to US NIOSH N95 and European FFP2 respirators.”
The masks are not a disposable mask. In these special cases, it can be reused, but there are conditions:
- When the mask gets contamination such as saliva (anybody fluids), it must be replaced
- If breathing resistance is greater than before and must be replaced
- If the mask is damaged in any way it must be replaced
- It is recommended to replace it after using it 4 times.