Smoky Room Window Ventilator Exhaust Fan, Vertical Sliding Window Fit 5cm Retractable, Tool-Free Embedded Install Stepless Speed Control for Kitchen Bedroom Pet Area Odor Extraction(White,49.2-51.2in)

Picture your kitchen after frying fish, or your garage thick with cigar smoke and summer heat. The air is heavy, and you need it gone. Just open your sliding window, place this slim aluminum fan into the vertical track, and let the top spring release. It clicks and locks firmly into place. No drills in your hand, no screws biting into your window frame, and the whole setup takes less than 60 seconds. Now, reach for the smooth rotary dial and turn it up. You won't hear a loud roar, just a quiet, steady hum as five separate fan blades wake up behind the durable stainless steel mesh. Watch the trapped smoke, heavy humidity, and lingering pet odors stop floating around. They are pulled directly toward the screen and forcefully pushed outside. Key Specifications:Noise Level: 16 dB (Ultra-Quiet)Speed: 2800 RPM (Stepless Adjustable)Motor: High-Efficiency 12V BrushlessAirflow: 98 CFMPower: 35 Watts (Energy-saving AC)Thickness: 1.57 inches (Slim-fit)Before You Buy:To ensure a seamless fit, please measure the inner vertical height of your window frame (from the top track to the bottom track). This fan is optimized for horizontal sliding windows and is not intended for crank-style (casement) windows.

• Specific Track Dimensions: Aligns within sliding window tracks spanning 29.5 to 31.5 inches; relies on precise vertical space measurement for installation; uses a 1.97 inches tension spring to hold the unit firmly
• Active Odor Displacement: Pulls internal air forcefully outside through continuous rotation; features an aluminum perimeter frame for sustained stability; functions entirely as a one-way exhaust mechanism
• Hardware-Free Insertion: Employs an internal compression spring to wedge into the window frame; tightens against the track without requiring external fasteners; protects the structural integrity of the surrounding wood or vinyl
• Low-Profile Integration: Merges closely with the window track to maintain normal operation; houses five individual fan units protected by a steel screen; occupies a minimal physical footprint within the window frame
• Variable Speed Dial: Modulates the rate of air extraction without preset speed steps; allows exact control over mechanical airflow output; supports air clearing functions in enclosed basements or utility rooms