What is used to substitute cfcs in spray cans?

Hydrofluorocarbons (HFCs), hydrocarbons such as propane and butane, and compressed gases like nitrogen and carbon dioxide are commonly used to substitute chlorofluorocarbons (CFCs) in spray cans. These alternatives help reduce ozone depletion while still providing effective propellant properties. Additionally, some products now utilize more environmentally friendly options, such as air or other non-ozone-depleting gases, to further minimize environmental impact.