3 ms·
> an N95 mask isn't too bad to wear if you can get one You realize these don't filter outgoing air right? If you have CoV2, you're literally spraying everyone
by djsumdog 6y ago
> an N95 mask isn't too bad to wear if you can get one
You realize these don't filter outgoing air right? If you have CoV2, you're literally spraying everyone around you with it if you wear these masks.
- ghshephard 6y agoI'm honestly curious as to what mechanism could exist on a mask that could filter air in one direction only (and also why someone would build a surgical mask to do that) - surely you want protection in both directions?
- dragonwriter 6y ago> I'm honestly curious as to what mechanism could exist on a mask that could filter air in one direction only You could have a mask that formed a tighter seal with internal underpressure, but moves slightly away from the face allowing exhalation to escape with overpressure. Obviously, you wouldn't want that in a surgical mask, but it pretty easy to do. There are more complex variants you could do where the difference in operation is driven by the direction of pressure differential.
- deleted 6y ago[deleted]