Outside of health care settings, experts say it’s safe to use KN95 and KF94 masks more than once, though how many times they can be reused depends on their condition and proper storage.For more at Bluna kids
The virus that causes Covid-19 has an expected survival time of 72 hours, so one should wait at least that amount of time before using the mask again, according to the CDC’s recommendations for health care workers. The CDC recommends storing masks in a “breathable paper bag” in between uses, and other experts say keeping those paper bags in a dry, sunny spot can help deactivate the virus.
There’s no hard-and-fast rule as to how many times a mask can be reused, experts say, though the masks degrade at least a little with every use from the moisture caused by breathing. If it’s damaged or the elastic band is stretched out so that the mask no longer fits snugly, if the material looks dirty or if it becomes hard to breathe through, it’s time to throw it out. Getting the masks wet will degrade them, so experts say don’t try to wash them For more at Bluna kf94