PANO-MOUNTS 20.08-33.86 Inch Vertical Expanding Window Fan for Sliding Windows - Dual Mode Airflow Exhaust Intake and Variable Speed Control for Household kitchen Humid and Basements Spaces White

["【CHECK COMPATIBILITY】Fits sliding windows with window frame height of 20.08\"–33.86\" > 6mm frame thickness. Confirm your window dimensions before ordering.","【DUAL MODE EXHAUST INTAKE】Features a switch on the bottom panel to easily toggle between exhaust and intake modes, adapting to your ventilation needs.","【VARIABLE SPEEDS】Three high-performance fans with speed control (0–2600 RPM) offer flexible airflow via bottom knob.","【COMPACT & WINDOW-FREE INTERFERENCE】This slim window fan hugs window frames tightly, allowing smooth opening and closing, it acts as a durable exhaust window fan for home ventilation.","【MULTI-SCENARIO USE】Great for removing smoke, reducing humidity, or improving air circulation in various rooms. Compatible with a height range of 20.08\"to 33.86\" window."]