Window Exhaust Fan for Sliding Windows, Adjustable Speed White 47.24 * 49.21in | 1.97 IN Retractable, No Need to Drill Holes, Embedded Installation, Ultra-quiet, for Home Attic Kitchen Buthroom Garage

Window-type exhaust fan, 5cm retractable, adjustable speed from 0-2800 RPM, suitable for vertical ventilation in homes, kitchens, bedrooms, living rooms, etc. Product Features: - Drill-free installation, easy to move between rooms. - High-speed fan at 2800 RPM keeps indoor air fresh. - Low-noise reluctance brushless motor. - Does not interfere with normal window opening and closing. - Adjustable power supply for flexible airflow control. - Easy to disassemble and clean. Can be used even in rainy weather. This ventilation fan truly achieves tool-free installation. No tools or drilling are required, and installation is very convenient. Just 4 simple steps: 1. First, clip it into the lower edge of the window frame. 2. Press down firmly. 3. Then, clip it into the upper edge of the window frame. 4. Plug in the adjustable power adapter. Technical Specifications: Name: Window Exhaust Fan Input Voltage: 110-220V Output Voltage: 12V Current: 0.35A (peak single fan) Speed: 0-2800 rpm (adjustable) Airflow: 98 CFM (single fan) Noise: 16-39.8dB (varies with speed) Bearing: Magnetic bearing Material: Aluminum alloy frame + stainless steel mesh cover Color: Black, White Size: Optional Package Contents: Exhaust Fan x 1 Power Adapter x 1 Instruction Manual x 1

• Telescopic Design: This exhaust fan for sliding windows features a three-section snap-fit ​​structure with reinforced springs, allowing for a 5cm (approximately 1.97-inch) telescopic adjustment. The fan securely locks to the window frame edge to prevent detachment and ensure safe and reliable use
• Fan Speed ​​Adjustment: Equipped with a stepless speed control power supply, this fan supports 10 speed settings to meet individual comfort needs while reducing energy consumption. It utilizes a hydraulic bearing brushless motor with a maximum speed of 2800 rpm, maintaining strong airflow while operating with extremely low noise
• Premium Metal Material: The Vertical Window Exhaust Fan features an aluminum alloy frame with double-sided stainless steel protective mesh, providing both waterproofing and effective insect protection. The unit is easy to disassemble and can be directly washed with water for dust removal
• Easy Installation: The Retractable Vertical Extractor Fan requires no drilling and can be installed in seconds! Simply snap it onto the window frame edge for secure use. Flexible installation options are available, supporting horizontal or vertical installation on either side of the window frame. Its slim design takes up minimal space
• Sliding Window Fan: Designed specifically for sliding windows, the aluminum alloy frame securely attaches to the window. Suitable for exhausting air in bedrooms, kitchens, bathrooms, and removing stale air from garages, attics, or smoke-filled rooms. For exhaust only—not a cooling or intake device