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Propane FAQ's 2 why does propane smell
Propane FAQ's
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Why does propane smell?
In its natural state, propane is an odorless gas. As a safety precaution, a chemical called Ethyl Mercaptan is added so any presence of propane may be easily detected.
While most of us are able to detect even the slightest propane odor, some people are unable to.

