ventilation exhaust fan Wall and Window Mounted Bathroom Ventilation Fan

What is our Ventilator Fan's sepcifictions??  Material: Plastic Sizes :  20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 92mm,120mm, 150mm,  and 200mm. We can also provide OEM, So, if you have special requirement, please contact us. Color: White    What is our Ventilator Fan's  Other features?  1. Special different view angles 2. Environmentally friendly, mercury and lead free. 3. Easy installation. What is our Ventilator Fan's  Applications?  Living Room, Bedroom, Bathroom, Kitchen, Dining Room, Home Office/Study, Conservatory, Utility/Laundry Room, Hallway, Porch, Garage, Patio