We'd inspect power station boilers, 145' up amongst the superheater tubes or crawl 80-200' of large diameter pipe to check girth weld discontinuities & our masks were clean. I'd masked in our building's laundry as COVID first got us & curiosity got the best of me. You guessed it? Without the driers on, window top cracked 3-4" & few folks aware; Polartec, Primaloft & CoolMax are fracking byproducts. I've used NIOSH & KF-94 ever since.
We'd inspect power station boilers, 145' up amongst the superheater tubes or crawl 80-200' of large diameter pipe to check girth weld discontinuities & our masks were clean. I'd masked in our building's laundry as COVID first got us & curiosity got the best of me. You guessed it? Without the driers on, window top cracked 3-4" & few folks aware; Polartec, Primaloft & CoolMax are fracking byproducts. I've used NIOSH & KF-94 ever since.
Start liking it.