[familyop]

"In Brooklyn, doctors at Kings County Hospital Center say they are so low on supplies that they are reusing masks for up to a week, slathering them with hand sanitizer between shifts."

Doctors and nurses should know better than that. Even the lowest of technically inclined Americans (see fixing their own cars and the like) know that sets of laundered bandannas would be safer.

[kiryandil]

In a heavy-duty toxic fog on the jobsite, I supplement the N-95 with a muslin kitchen cloth that's 30 x 30.

Dirt cheap at Walmart.