Ozone is a naturally occurring compound in which three atoms of oxygen are combined to form the ozone molecule (O3). Oxygen most commonly exists as two oxygen atoms (O2). Ozone is formed when energy from ultraviolet (UV) light or electrical discharge break the O2 bonds, forming single oxygen atoms which recombine with O2 molecules to form ozone. Ozone is an unstable molecule owing to the weak bonds holding the third oxygen atom. This instability makes ozone a naturally powerful oxidizing and disinfecting agent. Oxidation occurs when ozone molecules come in contact with oxidizable substances, including microorganisms (viruses, molds, and bacteria), as well as organic and inorganic compounds (metal ions, plastics and rubbers).
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