Carbon dioxide is a substance that is produced when a substance containing carbon burns or ferments, when a living thing breathes, or when there is human metabolism and it is non-combustible gas (carbon dioxide, carbonic anhydrid) that is heavier than the air which is colorless, tasteless, and odorless. It is used for welding gases, coolants, antioxidants, fire extinguishers, releasing agents for iron castings, food additives of beer and carbonated beverages, low temperature storage of vegetables and fruits, removing tannic acid from persimmons, promoting plant growth, local anesthetics, antacids, disinfection gas (mixed gas with E.O), pesticides, carbon dioxide laser – skin treatment lamps, water treatment and wastewater treatment – PH control, puffing of cigarettes, and heavy spray application (cosmetic, pharmaceutical, insecticide, etc.).