Window Exhaust Fan, 5CM Retractable Window Exhaust Fan, Adjustable Speed 0-2800 RPM, Retractable 35-135cm Optional, Removable Screen for Mistakes, for Home, Kitchen, Bedroom & Offi

Flexible and Adjustable: With a 5cm extension range, you don't have to worry about installation issues. The three-segment clamp design firmly grips the window frame edge, and the thickened spring prevents it from falling off, ensuring safety and reliability. Multiple Sizes Available: Choose from 35-135cm adjustable lengths. Select the appropriate size based on your window measurements. Self-powered, suitable for both home and commercial use. Easy Installation: Firmly clamps to the window frame edge for secure installation, preventing detachment. Easy to install and remove, and can be directly washed and cleaned. No restrictions on installation location; no drilling required; can be installed on either side of the window. No-Drilling, Universal Design: Installs with a simple "click"—no drilling or tools required, and it doesn't interfere with window opening and closing. Installs on the window frame edge for easy use; no professional installation needed; easily add a tabletop without any modifications. Wide Applications: Eliminates smoke, odors, and cooking smells, creating a healthier, more comfortable environment. Suitable for removing smoke in card game rooms; suitable for vertical installation on sliding windows; suitable for pet odor elimination and ventilation; suitable for horizontal installation on casement windows.