They say "If you are healthy, you only need to wear a mask if you are taking care of a person with suspected 2019-nCoV infection."
That assumes you're doing everything else to protect yourself already, like stay away from crowded places.
It also assumes that you know that you're healthy. You could be carrying COVID-19 without knowing it!
One reason health practitioners wear masks is not to infect vulnerable patients with something they might be carrying.
> there is not much to stop viruses with coming in contact with your eyes.
Other than the goggles that you mentioned; yet, nurses in hospitals don't routinely wear goggles, yet do wear masks.
This is probably because your eyes do not suck in air the way your air passages do, and also don't spew viruses into the air.
They say "If you are healthy, you only need to wear a mask if you are taking care of a person with suspected 2019-nCoV infection."
That assumes you're doing everything else to protect yourself already, like stay away from crowded places.
It also assumes that you know that you're healthy. You could be carrying COVID-19 without knowing it!
One reason health practitioners wear masks is not to infect vulnerable patients with something they might be carrying.
> there is not much to stop viruses with coming in contact with your eyes.
Other than the goggles that you mentioned; yet, nurses in hospitals don't routinely wear goggles, yet do wear masks.
This is probably because your eyes do not suck in air the way your air passages do, and also don't spew viruses into the air.