The volatility and rate of evaporation of fragrances play a role in determining for which products they are suitable. For example, Coconut Vanilla has very low volatility so it performs great in our active air fresheners  (myfresh, ourfresh, and ourfreshe) that have a fan to accelerate evaporation. They don’t perform as well in passive air fresheners such as Eco-Air or Curve which rely solely on the air movement in the room to evaporate fragrance.