A variety of masks exist in the market nowadays, such as disposable masks, medical surgical masks, N95 masks and so on. Disposable masks are the most common masks among the types of masks, with the structure of filtering dust and filtering bacteria, and non-woven fabric wrapped around the outer circumference, often belonging to the disposable supplies. Disposable masks are usually used to protect against air pollution, especially in hazy weather. The use of disposable masks during the epidemic phase of the new coronavirus has a relatively low level of protection. However, wearing disposable masks can also provide a certain degree of prevention if you can keep a sufficient distance from the patient or minimize contact with the patient. Source: Dr. Yurai