3 ms·
This makes sense. Valve masks protect you, but don’t protect others. Regular paper masks don’t protrct you well, but protect others. Now, I have no idea what th
by moomin 6y ago
This makes sense. Valve masks protect you, but don’t protect others. Regular paper masks don’t protrct you well, but protect others. Now, I have no idea what the infection profile of everyone wearing a valved N95 mask is, but I do know it’s never gonna happen unless the airline supplies them. With that ruled out, the safest thing to do is ban them.
- giantg2 6y agoI'm not sure that's the safest thing. They still allow all sorts ineffective masks, like ones made of loose fabric. At least a valved N95 mask protects one person. Those loose fitting masks are practically worthless and protects zero people. That said, you can just put fabric over the exhaust port to make it 'legal'.
- vorticalbox 6y agoIf a paper mask doesn't protect you very well, as in they let the virus in then why would it project others? If the virus can get it you can bet it can get out too
- shuntress 6y agoThis is the part that is not true: "If the virus can get it you can bet it can get out too" and also does not hold up to basic reasoning. "If a firefighter can get down the firepole, you can bet they can get up too" Virus ingress is slightly impeded but virus egress is significantly impeded.
- mrshadowgoose 6y agoA properly used and fitted N100 or P100 respirator will, by definition, protect the user from infection through inhalation. If we're resorting to making guesses about infection profiles, intuition says these types of users have probably not picked up an infection through other means. Forcing them to downgrade to inferior masks probably puts others at a higher risk...