Inhalant abuse involves the voluntary inhalation of gases or fumes in an effort to achieve an intoxicated state. These substances include many household products that are legal to buy and possess, including such things as airplane glue, nail polish remover, and propellants used in certain commercial products, such as whipped cream dispensers. Generally, the vapors are inhaled through the nose or mouth, a practice referred to as huffing, but they can also be ingested or absorbed through the skin. Adolescent abusers usually choose inhalants based on availability, the desired physiological effect, and the degree of social and legal risk associated with possessing the substance.
The deliberate inhalation of dusts, gases, gasolines, paints, solvents or other chemicals in order to alter perception or consciousness. Many inhalants used for this purpose may damage the upper or lower respiratory tracts, or cause brief or long-lasting injuries to the central nervous system.