COVID-19 Outbreak (Update: More than 2.9M cases and 132,313 deaths in US)

Masks are only effective if the single use ones are disinfected after use or thrown away. Cloth ones are only effective if they are washed every day. If you remove your mask and jam it in your pocket (where you hand has been) it must be disinfected.
I see people pulling out of their pocket or purse some nasty mask and thinking it's fine. If you are not following useage guidelines with regard to the type of mask you have then you might was well might have not been wearing one.
So just because someone has a mask on dont assume anything. Just saying.