[Fiji Hill]

One would think that masks themselves would be a health hazard because they restrict the flow of oxygen when you breathe in and trap the CO2 when you exhale. It would also seem that they would quickly be contaminated with your germs unless you disinfected them periodically with alcohol.

[SmokingJoe]

Several top doctors have said the same thing.

[AFB-XYZ]

“One would think that masks themselves would be a health hazard because they restrict the flow of oxygen when you breathe in and trap the CO2 when you exhale.”

You are correct.

[Songcraft]

It seems the challenge would be to find enterprising ways to introduce alcohol into the breathing process and mask employment, which would serve to sterilize the mask with each breath/sip combo.

(We can perhaps refer to the result of this mask breathing/swigging process as being in a state of "ine-breathiation".)

[TigersEye]

Correct on both points.

Masks also hold a high concentration of virus on them, as opposed to your breath dissipating into the air and particles falling to the ground where a virus quickly dies, so when you inadvertently touch your mask your hand now has a serious load on it as opposed to touching your unmasked face.