How to protect from coronavirus
The Corona virus size is 400-500 micro diameter so it cannot pass through any mask
It does not spread in the air and lives on something.
Its life is 12 hours
It is washed with soap and water
Lasts 9 hours if lying on a cloth, or laying in the sun for two hours it dies
It lasts for 10 minutes on hands so it is possible to prevent alcohol sanitizer from being in the pocket.