It's my understanding that different foam cleaners are needed for the condensing and evaporative coils (we're getting ready to do our first maintenance cleaning since purchasing) Since the evaporative coils vent into the rig, I'm assuming the difference in cleaners has to do with odor or toxicity. If that's correct, will Simple Green coil cleaner fit the bill? It is non-toxic and biodegradable. If I'm wrong, then what differences am I looking for in ingredients? Another possibility is that I'm making this more complex than it needs to be