... fan, exhaust fan:Pleasing in appearance, surface gloss,and ultra-quite,energy saving design,long life,and easy of installation ... glossCeiling ventilator fan:Pleasing in appearance, surface gloss,and ultra-quite,energy saving design,long life,and easy of installation ... 8 m26-9 m28-12 m210-15 m2Pipe diameter80mm100mm100mm100mmBlandSONGTIANSONGTIANSONGTIANSONGTIAN/: Deluxe bathroom ventilation fan