Sliding Window Exhaust Fan, Vertically Mounted, Adjustable Fan Speed, Suitable for Hot, Humid, and Poorly Ventilated Areas, Installable in Sizes From 14-59 inches black 49.2-51.2in/125-130cm

Introducing the innovative vertical retractable window sash exhaust fan – the ideal choice for efficient air circulation! This box-type exhaust fan features a retractable, ultra-slim design, easily extending 5cm/2in to fit various sizes of sliding windows. Installation can be completed in minutes without tools. No drilling or complicated setup required!Experience the powerful ventilation of our adjustable-speed electric fan, with a strong airflow that quickly removes smoke, moisture, or stale air. Especially suitable for hot regions, smoky places, and humid environments, it actively lowers the temperature, drawing in fresh air and expelling heat, making it a compact air conditioner alternative.This small, upright ventilator is perfect for multiple rooms, especially bathrooms, garages, kitchens, and bedrooms. Its quiet operation ensures a comfortable environment, cooling the bedroom at night without disturbing others. Its waterproof construction allows it to withstand humid conditions.Note: Please confirm the layout between windows in advance. For accurate data, multiple measurements can be taken to avoid incorrect size selection.

• Universal Sliding Window Ventilation Fan: This vertical window ventilation fan is designed for sliding windows with an inner frame height of 13.8 inches to 59 inches (35 cm to 130 cm). The 2-inch (5 cm) retractable frame accommodates slight size variations, ensuring a perfect fit with most standard sliding windows.
• Suitable for Multiple Uses: From removing kitchen fumes and reducing pet odors to dehumidifying bathrooms and ventilating smoky rooms, this window ventilation fan is a versatile home ventilation solution. Ideal for apartments, offices, and any place that needs improved air quality and a fresher feel.
• Tool-Free Installation, Secure Fit to Sliding Windows: Designed for vertical installation on sliding windows, this window ventilation fan features an adjustable spring frame that allows for a tight, secure seal without drilling. It solves the loosening problem common with smaller window ventilation fans.
• Sturdy and Easy to Clean: Featuring a reinforced aluminum frame and double-layer stainless steel mesh, this window ventilation fan effectively prevents insects from entering, making it both durable and easy to maintain. It is completely waterproof and UV resistant, able to withstand sun and rain. Both the top and bottom covers can be opened for easy washing without disassembly.
• Quiet yet powerful: This window ventilation fan features a brushless motor and magnetic levitation bearings, operating at a mere 35 decibels—as quiet as a whisper—while providing powerful airflow to quickly purify indoor air. The stepless speed control allows you to smoothly adjust the wind speed, from gentle to strong, to meet your different needs throughout the day.