Unless it's an N95 mask, it's pointless. You go ahead and breathe through a filthy cloth which is collecting bacteria.

Edit: Apparently N95 isn't effective either. I read the studies on mask efficacy and neither surgical nor N95 masks had a measurable effect on viral spread.

Unless it's an N95 mask, it's pointless. You go ahead and breathe through a filthy cloth which is collecting bacteria.