The primary purpose of wearing a mask is to protect oneself and others from the transmission of infectious diseases, particularly during health emergencies such as the COVID-19 pandemic. Masks serve as a barrier that limits the spread of respiratory droplets, which can contain viruses and bacteria. Additionally, masks can also provide protection from allergens, pollutants, and irritants in the environment. In various cultural contexts, masks may also have symbolic or artistic meanings, serving purposes related to performance, identity, and tradition.