3 Do masks even do anything? (twitter.com) posted 3 years ago by Nomen 3 years ago by Nomen +4 / -1 8 comments share 8 comments share save hide report block hide replies
The ironic part is the mask that gives you the most protection (3M 7500 with P100 filters) has a vent so it gives those around you the least protection. If I need to fly that's the one for me.