N95 is not in short supply now..still it is more expensive than other masks..and it is often not needed for routine use in public. regarding filter storage---it depends on the material --you may want to check 3M website for specifics--some even have instructions for sterilizing and reuse etc.. The face piece and be easily wiped off with sanitizer wipes and allow to dry out etc.. Good luck
Answered 11/6/2021
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