Propane, an alkane that at standard temperature and pressure is a gas. It has a role as a food propellant. Propane in combination with butane was used for recreational inhalation in adolescents. That use caused to death. The compounds found in tissues and biological fluids were perfectly compatible with those contained in the containers used for the inhalation. The mechanisms of death were assessed in a combination of the direct toxicity of the compound and oxygen replacement.