Wearing a mask is the most effective way to cut off the transmission route. Novel coronavirus pneumonia is a respiratory transmitted disease that enters the human body mainly through breathing. If you use a mask that meets the regulations, you should be able to avoid respiratory infection. In the actual clinical work, it is found that some people wearing masks are still infected, presumably there are several possibilities: 1, the quality of the mask is not good; 2, the mask has been used for too long, the protection effect is reduced; 3, wearing the mask is not standardized, such as not completely covering the mouth and nose, not pinching the nasal clip part, resulting in the patient’s respiratory secretions into the body; 4, the problem of hand hygiene, touching the nasal cavity when removing and wearing the mask, or In these cases, if you do not pay attention to hand hygiene and do not wear the mask correctly, or do not wear the mask throughout, you cannot guarantee 100% prevention of respiratory infections. Masks, eye masks, and protective face screens are required in rooms with novel coronavirus pneumonia. These spaces have high levels of virus and may have aerosols present. In addition to hand hygiene, eye protection is required in closed, confined spaces. Content source: Dr. Yurei