That sounds reasonable, so IDK why it would cause the window insulation film to peel off.
Not sure what to say at this point. I generally try to avoid products marketed for pets unless they're the only game in town, because IME they are usually overpriced and not great quality. There are exceptions to that too, like MistKing which I think is a quality product (has been for me, anyway).
If it were me, I'd probably open the fogger up (if possible without destroying it) and see if I could fix the noise problem. But I'm a tinkerer, and I know not everyone can—or wants to do that.
As it happens, I'm in the market for a fogger myself, so I'm reading about them—both mfd. and DIY.
(no decisions or even leanings yet).
I don't say this often, but he
is adorable.