Features: The exhaust fan is made from plastic, It can stands up to everyday wear and tear, guaranteeing lasting performances. This bathroom fan offer intakes and exhaust modes to balance indoor and outdoor temperatures, effectively purifying indoor air. The check gate automatically opens during operate and closes when stopped. Low noise, easy to use. The kitchen bathroom fan IPX4 function provides protections against splashing water, increased durability and safety in damp environments such as the kitchen. The exhaust fans can be conveniently installed in locations such as garages, workshops, chicken coops, sheds, attics, greenhouses, offices, hospitals, and theaters, suitable for both indoor and outdoor, residential and commercial use. Specifications: Component: Plastic Type: 4inch/6inch 4inch Size: about 10x10cm/3.94x3.94inch 6inch Size: about 15x15cm/5.91x5.91inch Power: 12W Working voltages: 220V~240V/50Hz Speed: 2400 revolutions per minutes Pipe diameter: 105-110mm Noise levels: 34dB (at a distance of 3 meters) airflows: 95 cubic meters per hour protections levels: IPX4 Activation frequency: 60-90% Speed setting: 1 Package Includes: 1pc Exhaust Fan note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.