Adjustable Window Exhaust Fan with Speed Controller, Low Noise Window Ventilation Fan, No-Drill Window Fan with Removable Mesh Screen, Waterproof Window Vent Fan for Kitchen black 55.1-57in/140-145cm

Efficient Window Ventilation FanAdjustable Window Fit DesignLow Noise Comfortable OperationDetachable Mesh Screen for Easy CleaningWaterproof Durable ConstructionAdjustable Speed ControllerSpecificationsProduct Name: Window Exhaust Fan (No-Drill Installation)Voltage: DC 12V(Adapter converts AC 100–240V to DC 12V)Power Current: 0.35AAirflow: 80 CFMNoise Level: 39.8 dBAdjustable Range: Up to 5 cm (≈2 in)Bearing Type: Dual Ball Bearing / Hydraulic BearingMaterial: PVC Plastic Frame + Metal Mesh ScreenInstallation Method: Window Frame Edge Mount (No Drilling Required)Speed Control: Adjustable Speed Controller IncludedAvailable Options: 2–12 Fan ConfigurationsApplication: Bedroom, Kitchen, Bathroom, Living Room, RV, Office VentilationBearing NotesDual Ball Bearing: More durable, suitable for long continuous operation.Hydraulic Bearing: Quieter operation, ideal for home environments.Notes：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.

• Adjustable Window Fit Design：This window ventilation fan features an adjustable extension structure that fits different window heights. The extendable design allows up to 5 cm adjustment, providing a secure and stable installation for various window frames.
• Powerful Air Circulation：Equipped with high-efficiency multi-blade fans delivering up to 80 CFM airflow, this window exhaust fan quickly removes heat, humidity, smoke, and odors, improving indoor air quality in kitchens, bathrooms, bedrooms, and living spaces.
• Ultra Quiet Operation：Built with a low-noise motor system and precision bearings, the window fan operates at approximately 39.8 dB, allowing comfortable airflow without disturbing sleep, work, or relaxation.
• Removable Mesh Screen for Easy Cleaning：The detachable metal mesh screens on both sides help block insects and dust while maintaining smooth airflow. The removable design allows quick cleaning and maintenance for long-lasting performance.
• Adjustable Speed Control：The included speed controller allows easy airflow adjustment. Simply rotate the dial to control fan speed according to your ventilation needs, giving you flexible airflow for different environments.