Masks - single use or multi-use?

[DewGuy]

RgrF wrote:
It maybe only good for inspiring confidence, non-N95 mask don't protect against atomized exposure. While it's not yet scientifically confirmed there seems to be a real possibility that the virus isn't only transferred through droplets. Droplets are the sort of thing a regular mask can help with, atomization not so much.

Still a mask is better than nothing so long as it doesn't lead to exposure to risky behavior due to overconfidence.

Based on what I've read, I don't believe that they do anything but instill a false confidence in people who are wearing them for protection. That said, if a person does wear one, can it be used over and over?