Adjustable Window Exhaust Fan with Speed Controller, Low Noise Ventilation Fan, No-Drill Removable Mesh Screen, Waterproof Vent for Kitchen Black 19.7-21.6in/50-55cm

Efficient Window Ventilation FanAdjustable Fit DesignLow Noise Comfortable OperationDetachable Mesh Screen for Easy CleaningWaterproof Durable ConstructionAdjustable Speed ControllerSpecificationsProduct Name: Exhaust Fan (No-Drill Installation)Voltage: DC 12V(Adapter converts AC 100\u2013240V to 12V)Power Current: 0.35AAirflow: 80 CFMNoise Level: 39.8 dBAdjustable Range: Up 5 cm (≈2 in)Bearing Type: Dual Ball Bearing / Hydraulic BearingMaterial: PVC Plastic Frame + Metal ScreenInstallation Method: Edge Mount (No Drilling Required)Speed Control: Adjustable Controller IncludedAvailable Options: 2\u201312 ConfigurationsApplication: Bedroom, Kitchen, Bathroom, Living Room, RV, Office VentilationBearing NotesDual Bearing: More durable, suitable long continuous operation.Hydraulic Quieter operation, ideal home environments.Notes：Please measure the window frame size before purchasing ensure proper fit.Install fan along inner edge of best stability and airflow.Regular cleaning mesh screen is recommended maintain optimal ventilation performance.

• 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.
• 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.
• 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.
• 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.