veterinary products cat aerosol chamber asthma spacer Function Aerosol Chamber is used to help deliver medication to dogs/cats suffering from respiratory conditions such as chronic bronchitis, laryngeal paralysis or tracheal collapse. The chamber is intended to be used along with a metered does inhaler to delivery aerosol medication to your cat or dog's lungs as prescribed by your veterinarian. Size: With 3 masks: 0/1/2# Certificate CE/ISO/SGS/Antistatic report Material 1.Antistatic Chamber is Polypropylene 2.Backpiece material is Thermoplastic 3.Silicone connector 4.Silicone mask 5.Safety silicone breathing vale