The CDC suggests it might be possible to re-use masks after storing them in a paper bag for a while https://www.cdc.gov/niosh/topics/hcwcontrols/recommendedguid

The CDC suggests it might be possible to re-use masks after storing them in a paper bag for a while https://www.cdc.gov/niosh/topics/hcwcontrols/recommendedguidanceextuse.html https://www.cdc.gov/niosh/topics/hcwcontrols/recommendedguid... I also wonder how such re-use of a mask combined with more durable N99 masks that are ordinarily rated at hundreds of hours for the filter (compared to 8 hours for your average N95 mask) could be used as a more permanent mask for households if only used occasionally when going to get groceries for example.