4in Extendable Vertical Window Exhaust Fan, Adjustable Speed 13.7817.72in | Detachable and Easy to Wash, Featuring a Quiet Fan, Drill-Free Installation, For Bedrooms, Kitchens, Bathrooms, Pet Rooms

Are you tired of stuffy rooms, lingering cooking odors, or the hassle of drilling into your window frames? The drill-free window exhaust fan is your ultimate solution for easy, non-destructive ventilation. Designed for modern living, this fan snaps onto the window frame edge in just 3 seconds—no tools or drilling required. Key Features: - Snap-on design ensures secure attachment to the window frame without drilling. - Intuitive knob control offers stepless speed adjustment (0–2800 RPM), ensuring quiet operation that won't disturb your sleep or daily activities. - Equipped with an upgraded, high-efficiency motor that generates powerful suction to accelerate indoor-outdoor air circulation. - Flexible, retractable clip mechanism fits most sliding, casement, and vertical windows. - Features a fine, double-sided insect mesh that blocks mosquitoes, flies, and dust while maintaining smooth airflow. - High-quality, waterproof aluminum alloy housing withstands rain and humidity, making it suitable for both indoor and outdoor use. - Energy-efficient operation reduces long-term electricity costs, making it ideal for continuous daily household use. Technical Specifications: Name: Window Exhaust Fan Input Voltage: 110–220V Output Voltage: 12V Current: 0.35A (peak per fan) Speed: 0–2800 RPM (adjustable) Airflow: 98 CFM (per fan) Noise Level: 16–39.8 dB (varies with speed) Bearing Type: Magnetic Levitation Bearing Material: Aluminum alloy frame + stainless steel mesh Dimensions: Various sizes available Package Contents: Exhaust Fan x 1 Power Adapter x 1 User Manual x 1

• Telescopic Window Exhaust Fan: Featuring a telescopic design, this 3.91-inch exhaust fan utilizes a three-stage locking mechanism and reinforced springs to ensure a secure fit against the window frame. It provides efficient ventilation and consistent, reliable performance for your home or office
• Adjustable Size: This sliding window fan fits window widths ranging from 35 to 189 cm, making it ideal for various window types that open vertically or horizontally. Powered by a reliable source, it delivers efficient ventilation for your home, kitchen, or commercial space
• Adjustable Speed ​​Settings for Flexible Airflow Control: The low setting offers quiet ventilation for nighttime use, the medium setting meets daily needs, and the high setting effectively clears kitchen fumes and bathroom humidity. Adjust the speed to suit your environment and maintain indoor air quality, keeping every room comfortable and fresh
• Dual-Sided Stainless Steel Mesh: Effectively keeps insects out while ensuring the safety and comfort of children. The mesh is waterproof and sun-resistant, designed to withstand hot summer air and rain for long-lasting durability. Enjoy fresh air with peace of mind regarding safety
• Drill-Free Installation: This window fan is easy to install; its "snap-fit" design allows for quick setup without the need for drilling or tools. With a sleek appearance, it fits snugly against the window frame edge without interfering with the window's normal opening and closing