What type of masks are good for crawl space or attic work? Is it best to get multiple masks like these? Or get a long lasting one w/ filters? : r/electricians
Making Fiberglass Masks : 19 Steps - Instructables
Amazon.com: 3M Safety -A Sanding and Fiberglass Respirator, 20-Pack : Tools & Home Improvement
3m Pro Sanding and Fiberglass Vented Respirators, 8511, 15 Masks (n95) : Amazon.ca: Tools & Home Improvement
3M P2 Particulate Sanding and Fibreglass Valved Respirators - 5 Pack - Bunnings Australia
The Best Respirators for the Boatyard - Practical Sailor
Are these masks sufficient against covid? They only had these ones left, I usually use the non-vented 3M masks, they block the most smoke (my method of testing in a high cannabis