Metal Window Exhaust Fan Vertical, Stepless Speed Control Air Vent, Punch-Free Embedded Installation Retractable Slim Blower for Bedroom Kitchen Garage Pet Area Odor Removal(White,29.5-31.5in)

Cooking a heavy meal in a tight apartment often leaves the entire living space smelling like onions or grease for days. You need to vent the space instantly. Just pop open your sliding window, slide this vertical aluminum fan into the groove, and let the spring expand. It is installed in seconds with zero hardware. Spin the control knob to turn on the five exhaust blades. It operates with a smooth, quiet hum that will not drown out your TV or conversation. Watch the cooking fumes get sucked directly through the steel mesh and thrown out of your apartment. Because the frame is so slim, you can pull your window pane right up to the edge, keeping the setup secure. You get to enjoy your dinner without wearing the smell of the kitchen all night.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.

• Window Track Measurement: Aligns with vertical sliding frames between 29.5 and 31.5 inches; necessitates measuring the inner track space for stability; applies a 1.97 inches spring tension for strict adherence
• Indoor Air Extraction: Removes stagnant air and localized odors from enclosed rooms; features a robust aluminum border to maintain structural shape; operates in a single outward direction only
• Non-Destructive Mounting: Inserts directly into the vertical frame using spring compression; bypasses the need for electric drills or mounting brackets; secures easily and removes without residue
• Flush-Mount Integration: Blends into the window frame to allow partial sash movement; contains five active mechanical fans behind a steel barrier; maintains a slim profile to maximize window visibility
• Precise Airflow Tuning: Modulates extraction rates through a smooth rotary controller; changes fan velocity to match environmental air density; supports air clearing tasks in enclosed workshops or kitchens