I'm tired, but please explain air dryer in this case? If it is a leaf blower type of machine, I would never use it in my garage because of the large "unvisible" amount of dirt laying on the floor that will straight away stick to the paint of the car. I would also not leave ONR (even mixed with distilled water, as I use it in my sprayers) to dry on the panel.
EDIT: Ok, now I get it, you mean that kind of machine that removes water from air. Yeah, I got one too in my garage when washing with ONR but I always dry with thick enough microfiber towels and use a liquid to keep the drying process more safe (Optimum Wax or Bilt Hamber Auto-QD). Always be very gentle when "onring"!