... of heating, ventilating, lighting, forms a whole ceiling system in harmony. MODEL:BPT16-2Exhaust fan : 35WPanel material: AluminiumPanel size: 300*450mmInstallation : ... :Modern design ,Long Life Ball bearing motor,super quiet,super exhaust , efficiently remove moisture, to ensure the indoor air quality ... 450mm,300*600mm,5.Ceiling Panel:Aluminium panel. Integrated Ceiling Exhaust Fan BPT16-2