I will say, humping hundreds of pounds of stuff up flights of stairs while wearing an N95 mask is a really &*%*&%&% experience. I may downgrade my protection to a cloth mask when I go to site. I had a bunch of N95 from past construction projects and I figured that I was entering a building with low compliance, lots of workers, minimal cleaning and 100% of the people from locations far from me, extra protection wasn't a bad plan but I am reconsidering.I've been noticing a lot of feeble older types not wearing masks properly. Masks are a nuisance but installing a ventilator isn't fun either. High risk and low compliance is a bad mix.