[stubish]

Most masks in Asia are simple cloth. You can make them yourself. Not as good as a N95, but they cut down smog and infection risk and are affordable. Even just a scarf helps if you insist on being fashion conscious. Yet nobody wears them, because we have a shortage of ones good enough to be worn in infection wards.

[lm28469]

> they cut down smog

Simple cloth masks Asians wear all the time don't do such thing. Pollutants go straight through these masks.

[foxyv]

They do reduce large particulates but you are right, they do nothing for NO2, CO, and Hydrocarbons.