Vertical Window Exhaust Fan Adjustable Speed - Retractable Sliding Window Fan Waterproof Metal Casement for Attics Hot Rooms(17.72-19.69in)

Extendable Design: A three-section clamp structure with reinforced springs allows for free extension and retraction of 5cm. The vertical sash securely locks against the window frame edge, preventing it from falling off and ensuring safety. Please measure your window frame dimensions before purchasingQuiet and Adjustable Wind Speed: The stepless speed control power supply supports 10 wind speed settings to meet different comfort needs while saving energy. The brushless motor has a maximum speed of 2800 rpm, providing high airflow with low noiseDurable and Easy to Clean: Aluminum alloy frame + double-sided stainless steel mesh, waterproof; the body is only 4cm thick, not affecting normal window opening and closing, and can be easily disassembled and washed for quick dust removalDrill-Free Installation: No drilling required, it snaps into the window frame in seconds; supports horizontal/vertical installation for flexible placement; 16cm wide, occupies minimal space, and fits various window framesHighly Efficient Ventilation: Quickly removes odors and humid, stuffy air; suitable for kitchen exhaust, pet deodorization, smoking environments, bathroom dehumidification, and other scenarios, keeping indoor air fresh for a long time

• Extendable Design: A three-section clamp structure with reinforced springs allows for free extension and retraction of 5cm. The vertical sash securely locks against the window frame edge, preventing it from falling off and ensuring safety. Please measure your window frame dimensions before purchasing.
• Quiet and Adjustable Wind Speed: The stepless speed control power supply supports 10 wind speed settings to meet different comfort needs while saving energy. The brushless motor has a maximum speed of 2800 rpm, providing high airflow with low noise.
• Durable and Easy to Clean: Aluminum alloy frame + double-sided stainless steel mesh, waterproof; the body is only 4cm thick, not affecting normal window opening and closing, and can be easily disassembled and washed for quick dust removal.
• Drill-Free Installation: No drilling required, it snaps into the window frame in seconds; supports horizontal/vertical installation for flexible placement; 16cm wide, occupies minimal space, and fits various window frames.
• Highly Efficient Ventilation: Quickly removes odors and humid, stuffy air; suitable for kitchen exhaust, pet deodorization, smoking environments, bathroom dehumidification, and other scenarios, keeping indoor air fresh for a long time.