It might be shocking, however the propellant gases in an inhaler or in anesthetic are greenhouse gases.
Nitrous oxide, or “laughing gasoline,” has 300 instances the warming potential of carbon dioxide. And the principle ingredient in an inhaler is a hydrofluorocarbon, a category of highly effective greenhouse gases utilized in AC and fridges.
Enhancements could be made. The gasoline in a metered-dose inhaler, for example, has the identical warming potential as 100 kg of CO2 over the course of its lifetime, whereas a dry-powder inhaler produces the equal of solely 4 kg.