More expensive ones, like the vent clips and clip-ons, will generally last longer, while cheap air fresheners will typically stop being effective after around 30 days
LorentDiscard's response is very positive: This is a great development
Enter: the cigarette jean
Someone in the room will ask about it
However, some vaporizer solutions use nicotine, an addictive stimulant found in traditional cigarettes, and more study is needed to determine the safety of exposure to the chemicals and additives found in many of the flavored, nicotine-free vape solutions
Manuscript received on 22 April 2014, revised version accepted on 4 August 2014