You can login if you already have an account or register by clicking the button below.
Registering is free and all you need is a username and password. We never ask you for your e-mail.
[–]fusir[S]0 points
0 points
0 points
(+0|-0)
ago
(edited ago)
Instead even single layer cloth masks show up on schlieren with less projection.
Whether projection matters or not is up for reasonable debate because everything lingers in the air and circulates through hvac. But if the idea is to keep someone from breathing on you directly then the ones with the exhalation port are essentially projecting breath through a nozzle, while people with single layer cloth masks are stopping projection.
Sort: Top
[–] BeenT_DoneT 0 points 1 point 1 point (+1|-0) ago
Masks don't prevent the spread of desease period. Wake up from your brainwashed stupor America!
[–] thebearfromstartrack ago
ALWAYS check your mail for cash.
[–] fusir [S] ago (edited ago)
Instead even single layer cloth masks show up on schlieren with less projection.
Whether projection matters or not is up for reasonable debate because everything lingers in the air and circulates through hvac. But if the idea is to keep someone from breathing on you directly then the ones with the exhalation port are essentially projecting breath through a nozzle, while people with single layer cloth masks are stopping projection.