A inhalant delivery system for supplying oxygen or another harmless gas to a user positioned on a massage apparatus such as a massage table or massage chair. A plenum having exit openings conforms generally to the inner periphery of a headrest of the massage apparatus such that the exit openings direct the oxygen or other harmless gas toward the nostrils of the user. The plenum is coupled to a supply of the gas. An optional infusion port may be included in the plenum to allow a fragrance or other additive to be infused in the stream of gas passing through the plenum.
