Today, wearing medical masks in public and crowded places and in offices, has become an element of a set of measures aimed at preventing various infectious diseases and the impact of the environment. Being as personal protective cover, it helps only if you follow the rules of its wearing.
First of all, the mask should be firmly fastened to the face – mouth and nose must be closed. If the mask is equipped with a fixator along the upper edge, then with its help you can give the mask the desired shape and it is better to press it against the bridge of the nose. The bottom edge of the mask must completely cover the chin.