Wet or dry inhalers?
D000335:Aerosol Propellants / Q000627:therapeutic use / Q000633:toxicity*; D000336:Aerosols / Q000633:toxicity*; D005617:Chlorofluorocarbons, Methane / Q000627:therapeutic use / Q000633:toxicity*
D000335:Aerosol Propellants; D000336:Aerosols; D005617:Chlorofluorocarbons, Methane