Came across this inexpensive little diffuser and thought it may be useful here. There are a few others listed at the site, but this one seems most appropriate for pheromones.
LorAnn Oils - Consumer Website
It operates by battery and uses disposable pads to scent with eos.. or pheromones.. or both. 
I’d probably only use instant shine or androstenol products as the others work better on my skin. I haven’t purchased it yet, already hit my limit for whim purchases until after the holidays. :o
May be something to look into. Androtics was using the Oust battery-operated fan diffuser, but I notice the local stores around here have all discontinued it. I think the Oust unit is great and I’m trying to pick up as many as I can locate. Real nice to have sitting next to the cat litter pan…
Ha Rbt, I was thinking for entertaining, work place, or just for keeping a good shine going at home.
Pheromone dosed cats might miss the litter box. 
If I recall from an earlier discussion, at least one (former) forum member was really into using the Oust units and Androtics refills for her gatherings etc. She also used some EO diffusers. I think she reported really good results.