Fireworks are not associated with the prevention of respiratory diseases. The main components of fireworks or firecrackers are saltpeter, sulfur, charcoal, and metals, and no studies have shown that their chemical composition and products of combustion are effective in inhibiting the spread of respiratory diseases. At the same time, the combustion of fireworks or firecrackers can produce harmful substances such as metal oxide particles, nitrogen oxides, sulfur oxides, and carbon oxides, which can irritate the respiratory tract and, in severe cases, can cause respiratory disease and increase the risk of infection. In addition, their strong oxidizing properties can cause irreversible damage to the eyes and other human organs.