4/6/8Inch Extractor Ventilation Fan High Speed Air Vent Window Wall Fan Energy-saving Wall Mounted Vent Fans Anti-Mosquito Design Durable Kitchen Bathroom Chicken/Duck Coop Feature: 1. Durable, Energy-efficient, and Efficient:The pure copper motor of this extractor ventilation fan ensures distinctive durability, energy efficiency, and high performance. With its physically powerful construction, the motor delivers dependable and long-lasting operation, saving energy whereas providing powerful airflow. 2. Boosted Impeller Fan Blade for High-Speed Operation:The specially designed boosted impeller fan blade of exhaust air blower maintains its shape even at immoderate speeds, ensuring consistent and effective airflow. This characteristic guarantees optimum cooling performance with none distortion or decline in effectiveness. 3. Premium ABS Fire-resistant Material for Durability:Crafted from positive ABS fire-resistant material, this exhaust fan is constructed to stand as much as each day wear and tear. The customized thickened panel complements the general sturdiness and durability of the fan, making it immune to influence and ensuring a long lifespan. 4. Anti-Mosquito Design with Check Valve:Equipped with a verify valve design, this air vent window wall fan acts as an effective barrier against mosquitoes and diverse insects. The verify valve routinely opens and closes with the wind, stopping undesirable pests from coming into your living space. Enjoy a comfortable and mosquito-free environment all day long. 5. Energy-saving, Compact, and Portable:This wall exhaust fan is designed with calories performance in mind, guaranteeing optimal airflow while ingesting minimum power. Its compact and light-weight design makes it helpful to use in diverse settings. Whether you would like air flow on your office, bedroom, or outdoors activities, this fan presents clean portability and fantastic airflow to preserve you cool and comfortable. Specification: Certification: NONE Origin: Mainland China Product main material: PC, ABS Product Size: 4 in: 150x150x80mm/5 (hole diameter: 100mm) 6 in: 200x200x80mm/7 (hole diameter: 150mm) 8 in: 250x250x80mm/9 (hole diameter: 180mm) Style: window exhaust fan Scope of application: kitchen, bathroom, greenhouse planting shed, white meat house and duck house, farm, pup house, garage room, etc. Note: Due to the various visual reveal unit and light-weight effect, the actual color of the object is maybe slightly diverse from the colour confirmed on the pictures. Thank you! Please allow 1-2cm measuring deviation thanks to manual measurement. 1 xExtractor Ventilation Fan