Telescopic Vertical Window Fan 35-155cm Optional, Punch-Free Exhaust for Home, Bedroom, Kitchen, Stepless Speed Control, Low Noise Black 131~155CM

High-Speed Silent Window Exhaust Fan, 2800 RPM with Stepless Speed Control, Punch-Free Installation, For Bedroom Living Room Office Ventilation A ventilation fan that is genuinely tool-free. It requires no tools, drilling, and complex installation. Features: - Punch-free installation allows for easy movement between rooms. rpm keeps indoor air fresh. Low decibel quiet operation, the lowest level of whole machine 36 decibels. Adjustable-speed power supply flexible airflow control. Easy disassembly cleaning; even use on rainy days. The number fans increased or decreased according to length. Parameters: Name: Fan Input Voltage: 110-220V Output 12V Fan Dimensions: 13cm x 13cm Air Volume: 85m³/h per fan Noise: Maximum 41dba Speed: RPM Power: 2.4W Standard Configuration: 6 meter Color: Gray/Black/White Material: 304 Stainless Steel Width: 15cm Thickness: 5cm Length: 35-155cm (Optional) Applicable Scope: Volume Change Rate/Fan = Actual Number Fans Required Bedrooms typically have 1-2 changes hour What You Get: 1 Power Cord 1

• RETRACTABLE DESIGN: Each fan retracts to 18 cm, no need to worry about size, seamlessly adapts to your space while providing efficient airflow. It has both functional and beautiful appearance
• EFFICIENT COOLING: This vertical window fan has a speed of up to 2800 rpm. With a speed controller, you can adjust the air volume at will, and keep the indoor air flowing easily
• APPLICATION: The body is light and thin, not only suitable for kitchens and bathrooms, but also for study rooms, offices, storage rooms and other small spaces that require improved ventilation
• LOW NOISE OPERATION: This upgraded exhaust fan can keep noise low even at high speeds, with a minimum of 36 decibels in the entire machine, and will not disturb your sleep, work, study or rest time
• FULL RANGE OF SIZES: This window exhaust fan is available in sizes from 35-155cm, suitable for most vertical windows. Includes power supply, for home, kitchen and commercial ventilation