What to do when the FFP2 mask is removed

FFP2 category masks often accumulate a lot of dust, bacteria and other dirt from the outside air in the outer layer, while the inner layer blocks exhaled bacteria, saliva, so the two sides should not be used interchangeably, otherwise the outer layer of contaminated dirt in direct close to the face when inhaled, and become a source of infection. It's not just a matter of time before we get to the point where we're ready to get to the point where we're ready to go.

FFP2 category masks are similar to N95 and KN95 masks in that they cannot be cleaned. Because wetting will cause the mask to release static electricity, it is unable to absorb dust with a diameter of less than 5um.

 

High-temperature steam disinfection is similar to cleaning in that water vapor also causes static electricity to be released, resulting in mask failure.

Source: https://www.unisourcesgroup.com/news/59.html