Wearing a mask can prevent tuberculosis infection to some extent because tuberculosis is mainly transmitted through respiratory droplets, with open tuberculosis patients who discharge bacteria being the main source of infection. Tuberculosis patients can expel Mycobacterium tuberculosis into the air by sneezing, coughing, and talking and suspend it in droplet nuclei for dispersal, and inhalation by healthy people can lead to infection. If dry Mycobacterium tuberculosis is inhaled with dust it can also lead to infection in healthy people, and if a mask is worn it can cut off that transmission route, so TB infection can be avoided. Tuberculosis is a chronic infectious disease with a chronic clinical course that can manifest itself as prolonged low-grade fever, night sweats, coughing, coughing and sputum, and in severe cases, hemoptysis. Currently, tuberculosis is still a relatively common infectious disease that endangers human health, so most patients can be cured with early anti-tuberculosis treatment. However, there is currently drug resistance in the treatment of tuberculosis, which makes treatment difficult.