[joaosardinha]

I've been trying to define the efficiency of wearing kn95 masks but you've probably looked into this extensively, tell me where I'm wrong:

Wearing a mask protects the people around you by not exuding the virus when sneezing/coughing, so covering your mouth with your elbow has the same effect.

I assume that while breathing there isn't enough pressure on your throat to exude virus with your breath, so the mask doesn't do anything here either.

In an isolated environment, the virus clings to particles in the air and takes 3h to gravitate down or towards a surfice, although this is faster in practice (weight of sneeze particles ann wind, etc) so when someone sneezes/coughs around you with no protection, you protect yourself by breathing through a mask. This is the only relevant benefit of wearing a mask that I found since I already cover my mouth while sneezing/coughing.

[ceejayoz]

We exhale droplets when breathing, not just sneezing/coughing. Not as many, but still some.

> In an isolated environment, the virus clings to particles in the air and takes 3h to gravitate down or towards a surfice

This is true for aerosols (like measles). Not for droplets.

[amiga_500]

> I assume that while breathing there isn't enough pressure on your throat to exude virus with your breath, so the mask doesn't do anything here either.

Why would you just assume something so critical to your entire conclusion?

https://www.erinbromage.com/post/the-risks-know-them-avoid-t...

[hsitz]

Not to mention he considers sneezing/coughing/breathing but not intermediate actions like talking.

[Aeolun]

In any environment with virus particles airborne, you breathe 95% less of them.

This doesn’t help you if you constantly stick your hands in your mouth after touching random stuff, but if you take all other precautions the efficiacy is going to be pretty damn great.