Oxygen is a tasteless gas. It has no smell or color. Oxygen can be used in various industries for many different uses. It can be used for cutting, welding and melting metals together. The gas is capable of generating temperatures of up to 3000C. It can produce energy in industries for generators, ships, airplanes and cars. Oxygen can be used in a breathing apparatus provided to patients who have difficulty breathing, as well as oxygen tanks in aircraft and submerge vessels.