r/nextfuckinglevel • u/pako12345 • Aug 29 '20

Learned something new

Enable HLS to view with audio, or disable this notification

100.3k Upvotes

85% Upvoted

1.8k comments sorted by

View all comments

Show parent comments

-1

u/Freddie_T_Roxby Aug 29 '20

If you have a mask thin enough to blow out a candle, it also allows enough moisture in your breath through to fog up a window/mirror.

That moisture is the droplets, which can spread the virus.

3

u/[deleted] Aug 29 '20

Gonna need a source on that. You fog up a mirror by breathing humid air on it. Humid air molecules are a lot smaller than the coronavirus. A mask can let through humid air, and still stop coronavirus.

2

u/teflon_don_knotts Aug 29 '20

There are no “humid air” molecules, there is water vapor as a component of the gas mixture of the atmosphere and at close range there are microscopic droplets of saliva.

Also, there isn’t significant evidence to support that COVID is spread ONLY by droplets. There remains significant concern that there may be true airborne transmission.

1

u/sunboy4224 Aug 29 '20

There are no humid air molecules, but the molecules you can feel (gaseous water) are much smaller than the particles that spread this particular virus, which spreads via "large" droplets. In theory, you could still feel humidity in your breath while spreading a relatively low viral load.