Ahh I had an Ideal that might work, go for the asthmatic approach, in times of stress it acts up and you attach the medication tube to the inhaler, They understand there are lots of medical devices that set their equipment off, for example: implanted pain pumps, insulin pumps, implanted neuro disruptors, a inhaler would fit like a glove (not that OJ glove LOL) I have personally used the inhaler/vaporizer(nebulizer) medication tube explanation and it didn't raise an eyebrow.