Faced with such serious smog and haze, a reporter from Henan speaks with residents about PM 2.5 masks that are useful for blocking dust and smog. A doctor is also interviewed about the effectiveness of such masks and how residents can prevent diseases caused by smog in their daily lives.
In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains the effectiveness of a disposable medical mask.
In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks should be used under which situations.
In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks are ineffective against COVID-19.