For the most part a lot of people wear a medical mask or a cotton mask. Some people wear a bandana which we've been told is the worst kind of at home mask you can wear but now experts are advising to not use an N95 mask with exhalation valves.
They said while N95 respirators masks, when worn properly, can signifantly reduce exposure to airborne particles, those with built-in exhalation valves only filter the air you breath in and not the air you exhale out. Which puts others at risk!