Medical masks include medical surgical masks, medical protective masks and general medical masks, therefore, medical surgical masks are one kind of medical masks. Medical masks are commonly used in the medical work environment, and the appropriate medical mask can be selected according to the different application scenarios: 1. Medical surgical mask: Made of non-woven material, it is better sealed when worn and has a better protective effect on preventing the spread of blood, body fluids and other splashes, and is more widely used in clinical practice. Usually can be applied in the operating room, nursing immunocompromised patients, body cavity operation and other scenarios, which can effectively prevent the risk of respiratory tract infection and protect yourself and others from infection in daily diagnosis and treatment work; 2. Medical protective masks: medical protective masks have an inner layer of non-woven fabric, a middle layer of polypropylene fiber meltblown material layer and an outer layer of polypropylene meltblown material layer, with a higher protective effect than medical surgical masks, which is a It is a kind of airtight self-absorbing and filtering medical protective equipment, suitable for wearing when contacting patients with airborne or close droplet-borne respiratory infections during medical treatment activities. Medical protective masks can stop most bacteria, viruses and other pathogens; 3, ordinary medical masks: made of non-woven fabric, the filtration efficiency requirements for particles and bacteria are lower than those of medical surgical masks and medical protective masks, mainly used to block nasal and oral secretions, and can be used for disposable hygiene care in ordinary medical environments, such as liquid preparation and bedside cleaning. Therefore, suitable medical masks can be selected for protection according to specific situations, which can reduce the risk of clinical infection and also help medical personnel to better protect themselves and their patients.