DiverDude : You should offer them to a nurse or small clinic in your area, even if they are open they could sterilize them by ziplock or whatever.
@carol888 : They are intended for short length usage. Not because they are heavy but because the filters are small. They do sell them now with larger filters, but mine are old. (which is how I acquired them - replaced inventory)They still work pretty good for my intentions, but I wouldn't wear it for any more than an hour.
But if anyone needs to borrow it... I don't expect that I have any big painting projects in the near future. At least not any that I can't use a smaller mask for.
I also have a plethora of headphones, but that doesn't help in the current situation. Although my nephew used a pair so he could concentrate for school work.