Creating an animate to represent odor

Hi All,

Thanks for looking in. I need to create an animation that would reflect scent / odor.  Any suggestions on the effect to use / add to a solid to create it? Perhaps something whispy? I tried CCParticle Systems II

as well as Particle Playground. I end up with what looks like flies and not like strands of odor. (IF you get my drift)

Thanks for any suggy's and parameters I may want to Exp with.

Regards

NC  Oh Cs6 Btw