He should just stay in his house to be safe.
The whole mask thing is a joke and will not protect him from exposure. Anyone who believes it is a fool. And if they are at that high of a risk then they should stay home... for their own safety of course.
If these masks are the magic cure all. Why did they empty the prisons afraid the poor prisoners would get covid instead of just handing out the magic masks to the prison population?
Their releases have resulted in crime waves and murders as could have been predicted.