Vertical Window Fan for Sliding Windows, Silent Window Exhaust Fan for Kitchen, Adjustable Wind Speed, Punch-Free Installation, for Bedroom Office Ventilation 140CM

40-140cm Vertical Window Exhaust Fan for Sliding Windows, Without Drilling Holes, Firmly Mounted on the Top and Bottom Frame, For Home, Kitchen, Bedroom and Office A ventilation fan that is genuinely tool-free. It requires no tools, no drilling, and no complex installation. Features: - Punch-free installation allows for easy movement between rooms. - 180x180mm standard fan blades, 230m³/h per fan. - Low decibel and quiet operation, no disturbing your rest. - Adjustable-speed power supply allows for flexible airflow control. - The number of exhaust fans increases or decreases according to the length or width Parameters: Name: Silent Window Exhaust Fan Input Voltage: 100-240V Output Voltage: 12V Air Volume: 230m³/h per fan Speed: Adjustable Color: Black Thickness: About 3cm Length: 40-140cm (Optional) What You Get: Exhaust Fan x 1 Power Cord x 1

• AVAILABLE IN MANY SIZES: This window exhaust fan is available in sizes from 40-140cm, suitable for most vertical and horizontal windows. Includes power supply, for home, kitchen and commercial ventilation
• EASY INSTALLATION: Our punch-free sliding window ventilation fan features a snap-on installation and fixing, which is simple and convenient. And it does not affect opening and closing of windows
• EASILY ADJUST THE SPEED: This vertical window fan comes with a speed controller, you can adjust the air volume at will, and keep the indoor air flowing easily. Suitable for bathrooms, kitchens, bedrooms, etc
• LOW DECIBEL: This upgraded exhaust fan features an all-copper movement that keeps noise low even at high speeds, without disturbing your sleep, work, study or rest time
• 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