What are the KN95 and N95 face masks
The difference between one and the other is that the first adheres to Chinese standards and the second to American standards, but their characteristics are the same. They are generally distinguished because they are stiffer and thicker. They also have the legend KN95 or N95 printed on them.
Their name derives from the fact that they have the ability to filter 95% of the particles in the environment. The CDC notes that N95 respirators adhere tightly to the face to ensure effectiveness.
Are these masks washable?
The masks should not be washed, nor is it recommended to spray them with a disinfectant, these actions only reduce their filtration effectiveness.
How long do they last and how many times can they be used?
The life of the masks depends on the use they are given. For example, an N95 used by a health worker should be discarded after just one use, as their exposure is greater.
The CDC notes that most publicly available respirators are disposable and should be thrown away when dirty, damaged, or breathing becomes difficult.
“Do not wash your N95 respirator or put it in the oven or microwave with the intention of sterilizing it. Replace the N95 when the straps are stretched and the mask no longer fits snugly on the face or when it is wet, dirty, or damaged. Throw it in the trash, ”says the agency.