35-140cm Retractable Window Exhaust Fan, Punch-Free Window Exhaust Fan, Variable Speed Window Fan for Bedroom, for Home, Kitchen, Bedroom & Office Black 35~40cm

Product Features: Unlimited installation location, no drilling required, can be installed on either side, anywhere. Expandable and retractable, no need for customization, 5cm retractable. Installs on the edge of the window frame for worry-free window opening and closing. Double-sided stainless steel mesh keeps mosquitoes out, ensuring comfort and safety for children. Multiple high-speed fans provide powerful airflow while saving energy. 2800 rpm, magnetic bearing brushless motor for silent ventilation. Infinitely variable speed settings for customized airflow. Waterproof design suitable for summer rain and wind. Easy installation and removal, can be flushed for dust removal. Stable installation to prevent falling. Fan Specifications: Model: Punch-Free Exhaust Fan Material: Aluminum Alloy Frame + Stainless Steel Mesh Current: 0.35A (peak per fan) Speed: 0-2800 rpm (adjustable) Air Volume: 98 CFM (per fan) Noise: 16-39.8dB (varies with speed) Bearing: Magnetic Bearing Extension: 5cm Mounting: Embedded Product Instructions: Retractable Window Exhaust Fan *1 Power Cord *1 Instruction Manual *1

• TELESCOPIC WINDOW EXHAUST FAN: 5cm telescopic design with three-stage clamps and thickened springs. Locks securely to the window frame for safe, stable, and reliable ventilation. Fits most windows perfectly.
• FLUSH-MOUNT INSTALLATION: This horizontal window exhaust fan features a flush-mount design, allowing it to be securely installed along the edge of the window without any drilling. Easy installation without affecting the normal use of the window.
• EFFICIENT HEAT DISSIPATION PERFORMANCE: This punch-free door and window fan adopts an axial flow fan structure design with a speed of up to 2800 RPM. High-quality steel ensures fast heat dissipation and stable operation without lag.
• ENERGY-SAVING DESIGN: This window exhaust fan is designed for maximum energy efficiency. Multiple fans operate efficiently, using very little electricity! For example, 10 fans running continuously for 24 hours only consume one unit of electricity.
• POWERFUL VENTILATION: The window exhaust fan effectively removes cooking fumes from the kitchen, humid steam from the bathroom, hot and stuffy air from the bedroom, and smoke from the living room, keeping the indoor air dry and fresh.