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Air Air
Ammonia Ammonia
Argon Argon
Carbon Dioxide Carbon Dioxide
Carbon Monoxide Carbon Monoxide
Ethane Ethane
Helium Helium
Hydrogen Hydrogen
Krypton Krypton
Methane Methane
Mixed Gases Mixed Gases
Neon Neon
Nitrogen Nitrogen
Oxygen Oxygen
Propane Propane
Refrigerants Refrigerants