Quote:
Originally Posted by MrBaldBastard
I have a 100 of them  brought back in the bush fire smoke days from Aus in Dec.
BTW..
Its HIGHLY likely that those sort of masks will be banned from anywhere your "required" to wear a mask. Any masks with the air valve on them let your expelled air out unfiltered, they don't protect others from you. Great for pollution, smoke and dust but as a virus barrier only 50% effective. |
I see a lot of masks with an exhale valve these days. It helps with folks with glasses. My glasses get all fogged up when I wear a regular mask with no valve.
You are probably right about not being able to wear them where masks are required.