Vertical Window Fan for Sliding Windows, Reversible Airflow Exhaust & Intake Window Fan, Adjustable Fit 35–150cm (13.8–59in), Stepless Speed Control, No Drill Installation, white 17.7-19.7in/45-50cm

Efficient Window Ventilation FanAdjustable Window Fit DesignLow Noise Comfortable OperationDetachable Mesh Screen for Easy CleaningWaterproof Durable ConstructionAdjustable Speed ControllerSpecificationsProduct Type: Window Ventilation FanInstallation Type: Window Edge MountMaterial: Durable Plastic Frame + Metal Mesh ScreenFan Type: Multi-Blade Ventilation FansNoise Level: ≤35 dB (Low Noise Operation)Power Supply: Plug-in Power AdapterSpeed Control: Adjustable Dial ControllerApplication: Bedroom, Kitchen, Bathroom, Living Room, RV, OfficeInstallation: No Drilling RequiredNotes：Please measure the window frame size before purchasing to ensure proper fit.Install the fan along the inner edge of the window frame for the best stability and airflow.Regular cleaning of the mesh screen is recommended to maintain optimal ventilation performance.

• Reversible Airflow – Intake & Exhaust in One：This vertical window fan features dual airflow modes for both intake and exhaust ventilation. Easily switch direction to bring in fresh air or remove hot, stale air, smoke, and odors from your room.
• Adjustable Fit for Most Sliding Windows：Designed with a stretchable structure, this window fan fits window heights from 35–150 cm (13.8–59 inches). Perfect for vertical sliding windows, narrow window gaps, and custom ventilation setups.
• Stepless Speed Control for Customized Comfort：Equipped with a smooth dial controller, you can adjust airflow from low to high without fixed levels. Achieve the perfect balance between strong ventilation and quiet operation.
• Ultra Quiet Operation for Better Sleep：Operating at ≤35 dB, this low noise window fan is ideal for bedrooms, offices, and night use. Enjoy fresh airflow without disturbing your sleep or work environment.
• Easy Installation – No Tools Required：No drilling or permanent modification needed. Simply mount the fan along the window frame edge. Suitable for apartments, RVs, kitchens, bathrooms, garages, and more.