I learned that if you are going to use whiteboard cleaner, do it when you are not going to need to stay in the immediate area. Use it, for example, on the way out the door at night. That stuff is unnecessarily strong.
What I have NOT yet learned is why a brand new whiteboard and brand new whiteboard markers even NEED whiteboard cleaner! What happened to the technology of oh about 15 years ago – the idea of using a plain old chalkboard type eraser, without noxious chemicals, and it worked just fine?