This is a Mitsubishi Electric pipe fan, model V-08PD8. https://www.mitsubishielectric.co.jp/ldg/wink/ssl/displayProduct.do?pid=320430&ccd=2020161610 It was installed in a toilet. It was replaced with a new one during a renovation, and since it was replaced before move-in, it has never been used. I am also selling another one of the same type. If you purchase them together, I can consider a discount on shipping.