Like many, Ive used one on and off since my high school days. Sometimes it feels like it works, sometimes it doesn’t. How do they work?
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They emit a measured amount of a fine powder with a puff of gas to make a cloud from it. The user inhales the cloud, delivering the powder into the lungs where the chemical inside can treat you. It depends on why you are having trouble breathing, as the drug only affects certain conditions.
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