A face mask does not offer guaranteed protection. But it certainly offers better protection than having nothing as a barrier. Some researchers claim a five fold increase in protection than without having one, but even though the exact figure is arguable, it does offer a certain degree of safety.
It mainly prevents or minimises the droplet transmission which is the major contributor.
Note it cannot provide protection for any transmission via the eyes.
If you got a mask wear it. It's so easy to make one at home. Something is better than nothing.
but people should use to avoid touch their face and eyes.. thats the most difficult part ithink.
