4 ms·
WARNING: a lot of people wear ill-fitting masks where air escapes on the top and on the sides. When the mask does not fit well adding a second mask can increas
by goodpoint 6y ago
WARNING: a lot of people wear ill-fitting masks where air escapes on the top and on the sides.
When the mask does not fit well adding a second mask can increase friction and encourage MORE air to go AROUND the mask instead of through it.
- whoomp12342 6y agodifferent for me. I have a construction mask that has a great filter but it is worn out and doesnt fit tightly anomre. a second whatever mask keeps that first mask close up and creates a better seal
- goodpoint 6y agoThat's write I wrote "can".
- Scoundreller 6y agoThat could be a big issue with large particles. But the air going through the mask is doubly filtered, that could make up for the increase in unfiltered air.
- goodpoint 6y agoWith very low viscosity, air is very good at sneaking out of a mask making it ineffective. Luckily you can give a good puff and feel with your fingers any air coming through your eyebrows or around the cheeks. Also covid tends to spread via ballistic spray more than aereosol so blocking the spraying is still useful. Spend time adjusting the metal piece over the nose. Stay safe!
- Scoundreller 6y agoI'm well into the N95 and equivalents where my test is "does it slightly implode on inhalation" because that means the path of least resistance is still the filter itself. I'm also well into the "it's aerosol" camp. Any mask at all will catch your outward ballistic spray.