Irrelevant.
The Favor was very, very similar to what we are using. Here's some history from a Google book search. Note the terminology in the second paragraph:
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A variation on the inhaler technology is the nicotine-delivering rod or "smokeless cigarette" first described by Jacobson and his co-workers (Jacobson 1979) and then markteed by Advanced Tobacco Products under the trade name Favor.
Even though the FDA decided that this nicotine vapor inhaler fell within its jurisdiction and was subject to its regulatory powers, it was initially marketed as a nontherapeutic cigarette substitute.
In some studies (Schumaker and Grunberg 1986; Russell and Jarvis 1987), pulling on this inhaler created several effects that mimicked those of nicotine delivered by tobacco, including acute heart rate increase and some of the sensations of tobacco smoke inhalation.
In fact, in a study by Henningficld (personal communication), use of the vapor inhaler produced reliable decreases in self-reported desire to smoke cigarettes, although it was not determined whether or not such effects would persist if abstinence from cigarette smoking were prolonged.
Interestingly, use of the vapor inhalers in these two studies did not produce detectable elevations in plasma nicotine levels. Russell and colleagues (1987) found that measurable nicotine plasma levels could be produced by use of the vapor inhaler, but only following extremely active inhalation.
These findings suggest that the vapor inhaler, as currently designed, is not a practically effective means of nicotine delivery, and that the apparently nicotinic effects are actually conditioned responses elicited by the peripheral stimulation provided by the vapor inhaler. In fact, Rose and Hickman (1987) have demonstrated that the oral inhalation of a citric acid spray can mimic certain properties of tobacco smoke and reduce self-reported "craving" for cigarettes.
Despite their current limitations, future versions of vapor inhalers might possibly provide a useful adjunct to other forms of replacement therapy and to behaviorally oriented tobacco treatment strategies.