To protect you from CoronaVirus you should use Mask properly. One must Maintain mask guidelines for put on, using, take off and disposal.

Use of MASK for protecting you from corona virus – convid19

When to use a mask?

Before putting on a mask

Fully Cover Mouth and Nose

Avoid Touching the Must While using it

Replace the Mask with new one

How to Remove the Mask?

Read .. coronavirus symptom personal care & treatment

source: https://www.who.int/emergencies/diseases/novel-coronavirus-2019