Xpelair Simply Silent 4"/100mm Humidistat Extractor Fan (Heartsease NR7)

Got this brand new for my mother to replace the same model she had had for a long time, but when the engineer came to install it the fan seemed to be louder than the previous model and I wasn't happy with it, so he ended up removing it and installing a different one from his own company. I bought it online and never got round to returning it. Collection from NR7 near Mousehold Heath.