It shouldnt be legal in my opinion, I have a tiny extractor, and no way is that thing enough, it consumes nearly 70w when running as well and super noisy.True. I haven't really looked that much into it.
Thankfully the bathroom at home is fully tiled with only the ceiling being painted. The window (frame etc) is UPVC as well so, although moisture occurs, nothing can "soak" it in. It also has a hygrometer activated extraction fan (can be switched on manually as well) and window which is opened when using shower/bath.
I could never have a house with no window in the bathroom....
A while back LL tried to propose after a gas engineer drilled shut my kitchen window to put one in the kitchen, told them no chance I Would be accepting that as its the only proper window in my home, and kitchen of course needs to be ventilated, I put foot down, and was lucky they backed down. It was resolved by LL paying a back hander to gas engineer to ignore flue proximity to window. Although later found out the distance is just about legal.
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