Originally posted by BigMackCam I've seen videos similar to this before, and I applaud the ingenuity - but how long can something like that last with the moisture from the wearer's breath?
Originally posted by wtlwdwgn That's a good question. They're pretty cheap to make so I have a new one to wear while I'm outdoors which isn't all that often. The doctor who recommended a mask like this said not to use a woven fabric but a manufactured fabric like the shop towel in the video. It may not be perfect but it should help to protect us. Just my ¢¢.
Those paper shop towels are pretty durable. I have used the consumer grade, shown in the video, and the commercial grade, used in shops where I have worked. The Big Shed has a version made to their specification BMS 15-5, used industry wide in aerospace.
They all have a mesh laid in as part of the process of creating the sheets, adding toughness and strength. The other layers, all the soft fluffy stuff for absorbing whatever, makes a durable and excellent filter material.
Speaking of The Big Shed, there are now 63 cases and one death among workers at that site since this thing began.