Can't get masks/respirators

Went to 4 different pharmacies, 2 of them enormous. Couldn't find any masks/respirators on the shelves. In each case I asked a store helper person. Only in the 4th one I went to did they have anything, and in that case there was only one type of product available - a disposable N95 respirator by 3M. They cost $5 each.

How are you finding masks and affording to stay masked all the time? It seems really expensive...