We've just had a lovely new bathroom built with my much longed for free standing bath. Building control has told us we need an extractor fan. The builders men returned today and have installed a horribly loud whirry sounding one. I can't imagine having relaxing baths or putting on my makeup to that noise. What should I ask for? I don't want the fan on unless the shower is used. It's the same as the ensuite one which isn't as loud or whirry.its a "Steeple". Thank you