If you wear a mask during sex, make sure it's clean! Dirty PPE is a health hazard. How many people wear the same mask all day? or ...even worse...the same mask all day for days
EWWWW
Not many. Few, very few.
"While cloth masks are designed to be washed and reused, most medical-style disposable masks are officially designed for a single use — especially in higher-risk environments.
But Kumar says you can reuse them, especially if you're just out and about in an area with a low prevalence of COVID-19.
Between uses, he recommends leaving the mask in a paper bag for at least three days. During that time, any virus on the mask will gradually decrease.
He says it would be "perfectly reasonable" to have five to seven masks that are rotated into use on subsequent days.
How many times can you reuse a disposable medical-style mask?
Kumar says with this type of mask, what you see is what you get, so you can reuse it until it's dirty, worn or damaged.
"Obviously, you don't want to reuse a mask that's soiled," he says.
N95 masks can also be reused, Kumar says.
... Medical-style disposable masks can be steamed or exposed to sunlight to kill the virus more quickly, Kumar says."
https://www.cbc.ca/news/technology/face-mask-stow-reuse-1.5675473
