We keep hearing that we need to wear masks to prevent the spread of ChinCOVID. Let’s try an experiment. Bum a cigarette from a smoker. Got out into the sun and light up. Get a mouthful of smoke (you needn’t inhale), and put your mask on. Exhale.
Did you see smoke? If you did, how far did you see it drift?*
Tobacco smoke runs around 4 μm. The average diameter of a coronavirus is .125 μm. If your mask won’t stop smoke, it won’t stop coronaviruses like SARS-CoV-2.
If you can’t get a cigarette, put on your mask and start your car’s engine. Go back to the exhaust pipe and take a sniff. Smell exhaust?
Auto emissions run 1-150 μm. The average diameter of a coronavirus is .125 μm. If your mask won’t stop auto exhaust, it won’t stop coronaviruses like SARS-CoV-2.
Let’s go back to the cigarette test. Get another mouthful of smoke and exhale. Now pay attention as you inhale. Was there still smoke inside your mask?
Forget the cigarette. Just stand there and breathe normally. Does it get warm and humid inside your mask?
Air exchange across a mask filter barrier is imperfect. Exhaled CO2 will get recycled by your breathing. It’ll gradually build up in your lungs. Have you seen videos of masked people doing oddly stupid things like failing to get their car’s gas tank to the right side of the gas pump, repeatedly closing their SUV’s hatchback on the spare tire carrier. Could be CO2 intoxication.
You know what else builds up in that mask? Any SARS-CoV-2 virus in your breath. If you have been exposed to it, wearing a mask will cause the virus to recycle in your breath, too. That concentrates and lengthens your exposure, making it more likely you’ll develop an infection.
Have a nice day.
* How far did that smoke drift? More than a “proper” 6 foot “social distance”? Think about that.