Vertical Window Exhaust Fan for Sliding Windows, Reversible Airflow Window Fan with Stepless Speed Control, No-Tools Punch-Free Installation Ventilation Fan for Bedroom Ba black 53.1-55.1in/135-140cm

• Adjustable Window Fit for Easy Installation：Designed with an adjustable frame, this window ventilation fan fits different window sizes for a secure and stable installation. Simply mount it along the window edge without drilling, making it a convenient window fan for sliding windows, apartments, bedrooms, and kitchens.
• Powerful Airflow for Efficient Ventilation：Equipped with multiple high-speed fan blades, this window exhaust fan delivers strong airflow to quickly remove heat, smoke, humidity, and odors. Ideal for improving indoor air circulation in kitchens, bathrooms, bedrooms, and RVs.
• Ultra Quiet Operation for Comfortable Use：Built with low-noise motor technology, this window fan operates at ≤35dB for quiet performance. Enjoy fresh air circulation without disturbing sleep, making it perfect for bedrooms, offices, and nighttime ventilation.
• Removable Mesh Screen for Easy Cleaning：The detachable metal mesh screens on both sides help block dust and insects while maintaining airflow. The removable design allows quick cleaning and maintenance, keeping the window vent fan running efficiently.
• Waterproof Design for All-Weather Use：Constructed with durable waterproof materials, this window mounted fan can withstand humid or rainy environments. Suitable for indoor and semi-outdoor installation, providing reliable ventilation even during rainy weather.

Efficient Window Ventilation Fan Adjustable Window Fit Design Low Noise Comfortable Operation Detachable Mesh Screen for Easy Cleaning Waterproof Durable Construction Adjustable Speed Controller Specifications Product Type: Window Ventilation Fan Installation Type: Window Edge Mount Material: Durable Plastic Frame + Metal Mesh Screen Fan Type: Multi-Blade Ventilation Fans Noise Level: ≤35 dB (Low Noise Operation) Power Supply: Plug-in Power Adapter Speed Control: Adjustable Dial Controller Application: Bedroom, Kitchen, Bathroom, Living Room, RV, Office Installation: No Drilling Required Notes： Please measure the window frame size before purchasing to ensure proper fit. Install the fan along the inner edge of the window frame for the best stability and airflow. Regular cleaning of the mesh screen is recommended to maintain optimal ventilation performance.