I heard the cloth and surgical masks are like 10% or less effective.
On the boxes of masks it says they do not protect your from Covid.
In the other hand, cloth masks worn for extended periods are good for growing all sorts of bacteria that you can breath into your lungs. That’s a plus.
The best way to state it is; if you live in Louisiana or Alabama, a face mask is like using chain linc fence for your screens on windows and doors——MOSQUITO, MEET CHAIN LINC!
The virus particle is so small it goes right through a mask that isn’t at least a PAPR, and they are not even 100% effective!