QJSZMEI Vertical Window Fan, No Drilling Required Installation Window Exhaust Fan, Adjustable Wind Speed Window Ventilation fans, 1.97 IN Retractable, for Bedroom Bathroom Kitchen Office

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• Retractable Design: Vertical window Fan for sliding windows uses a three-stage caliper structure with reinforced springs, allowing for 5 cm (approximately 1.97 inches) of free extension and retraction. Vent fans locks securely onto the edge of the window frame to prevent detachment, ensuring safety and reliability. Please measure the window frame dimensions before purchasing to select the appropriate size.
• Wind Speed Settings: casement window fan is equipped with a stepless speed control power supply, allowing for 10 levels of wind speed adjustment to meet individual comfort needs while reducing energy consumption. Vertical window exhaust fan uses a hydraulic bearing brushless motor with a maximum speed of 2800 RPM, enabling powerful airflow output at extremely low noise levels.
• High-quality metal materials: Household window fans features an aluminum alloy frame with double-sided stainless steel mesh, which effectively blocks insects and is waterproof. window fan vertical fit can be easily disassembled and washed directly with water to remove dust. The body is only 4 cm (approximately 1.57 inches) thick, which does not affect the opening and closing of the window at all.
• Easy Installation: Metal exhaust fan requires no drilling and can be installed in seconds! Simply clip it onto the edge of the window frame for secure use. Installation location is unrestricted, supporting horizontal and vertical installation on either side of the window frame. With a super-thin 16 cm (approx. 6.29 inches) body and a ventilation width of 14 cm (approx. 5.5 inches), low profile window fan takes up minimal space.
• Multi-scenario Purification: Sliding window fan vertical can quickly remove unpleasant odors and stuffy, humid air from indoor spaces, preventing dampness and stuffiness. Slim window fan is suitable for a variety of scenarios, including kitchen grease fume exhaust, pet odor removal and ventilation, smoke removal in card rooms, and bathroom dehumidification, ensuring that the air remains fresh at all times.