3 ms·
This is one of the reasons why N95 masks are hard to clean/sterilize AND return them to the original effectiveness. You have to remove the water that has conden
by drjasonharrison 5y ago
This is one of the reasons why N95 masks are hard to clean/sterilize AND return them to the original effectiveness. You have to remove the water that has condensed on the fibers. Vacuum pump appears to be an effective method.