What is chemicals used in aerosol sprays refrigerators and air conditioner that cause the ozone molecules?

The chemicals used in aerosol sprays, refrigerators, and air conditioners that contribute to ozone depletion are primarily chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). When these substances are released into the atmosphere, they eventually reach the stratosphere, where ultraviolet (UV) radiation breaks them down, releasing chlorine atoms that can destroy ozone molecules. This depletion of ozone in the stratosphere allows more harmful UV radiation to reach the Earth's surface, leading to various environmental and health issues. Efforts to phase out these substances have been implemented through international agreements like the Montreal Protocol.