COVID-19 is assumed to be spread by the virus-containing dropletsTrusted Source that are transmitting when people speak, cough, or breathe. If these droplets enter in another person’s mouth or nose or are inhaled from the air, they can infect that person and make them ill. According to Robert F. Garry, Jr., PhD, professor of microbiology and immunology, at Tulane University School of Medicine, “a mask provides a physical barrier to catch those droplets.” In reality, Masks made up with cloth piece can shut off about 40 to 60 percent of the droplets, said Garry. N95 masksTrusted Source can do an even better job, blocking 95 percent of very small particles, including viruses1. Despite overwhelming evidence that face masks effectively reduce the spread of the novel corona virus, some people still refuse to wear masks.2 In India, where mask-wearing last month became legally mandatory on public transport and in shops, As the number of corona virus cases rises in the country, many states have made compulsory wearing a mask while going out in curb of corona virus infecrion.3 they had read false claims on social media that face masks can lower blood oxygen levels and even cause brain damage. In reality, wearing a face mask helps prevent the spread of the novel corona virus still, some people refuse to wear masks, falsely claiming that the cloth shield causes their oxygen (SPO2) levels to drop4.