Runcarla, I purchased N95’s from Project N95, which was originally set up to sell to healthcare workers when N95’s were in short supply. Fit testing is done at my annual health assessment for my hospital privileges, at the health staff health clinic. Guessing at N95 fit can be tough, because there are so many styles…duckbill, cup, folding, etc. For work, I ended up purchasing an envo mask, which has an elastomeric seal and re-usable/replaceable filters. I use a surgical mask over the top and switch it between patients. I also purchased the valveless frame. N95’s are pricey, so if they are required for your sons work, I would hope they provide them and also do the fit testing. The envo mask is also pricey, but in the end, costs me about the same as the N95’s and creates less waste. For travel on an airplane, I would wear my Envo mask plus a surgical mask.
DH and I have been taking small trips and we have gone to some museums in cities within driving distance. Appointments were needed as were masks, but once inside, the museums were quiet, and very pleasant. We postponed a planned trip to Portland Oregon because DD told us the heat plus air quality from forest fires would result in more need for indoor activities at a time when their COVID rates were rising and hospital beds almost full.