Sorry for the delay - we age and rotate resperators. The virus is presumed inactive after four days, so we have a weeks worth rotating at any one time. We stor

Sorry for the delay - we age and rotate resperators. The virus is presumed inactive after four days, so we have a weeks worth rotating at any one time. We store them in paper bags to let them dry out. Given we rarely actually have to go out of our home offices, it works well. 20 resperatore lasts about three months per person. If you need more - you can get 3M N95 from South Korea - about $200 for twenty.