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Putting my comment into an answer - I don't think you need to over think it, they are nothing special. Propellant for most aerosols is Butane, these have an odor added, so are no different than a c...
Answer
Putting my comment into an answer - I don't think you need to over think it, they are nothing special. Propellant for most aerosols is Butane, these have an odor added, so are no different than a c...