Retractable Window Exhaust Fan – Efficient Ventilation for Home and Commercial Use Experience fast and effective air circulation with this retractable window exhaust fan, designed for easy installation, reliable performance, and versatile application. Key Features and Benefits: Multiple Size Options: Available in adjustable lengths from 13.78 inches to 61 inches (35 cm to 155 cm) to fit a wide range of window sizes. Simply measure the inner window diameter to choose the correct size. Wide Compatibility: Suitable for homes, offices, kitchens, bathrooms, workshops, and other commercial spaces that need improved airflow and odor removal. Embedded, Drill Installation: The fan uses a secure embedded design with a 3level caliper structure and reinforced springs, holding the unit firmly in place without drilling holes. Windows remain fully functional after installation. Material Construction: Built with a durable aluminum alloy frame for strength and longevity. The bearings use magnetic levitation technology for smooth, quiet performance. A doublesided stainless steel protective mesh prevents the entry of insects and adds safety for children. LowNoise, Adjustable Operation: Operates at a voltage of 12V and current of 0.35A per fan. Speed is adjustable from 0 to 2800 RPM, producing an airflow of 98 CFM per fan. Noise levels range from 16 to 39.8 decibels depending on speed, ensuring a quiet operation suitable for both day and night use. NoTool Fast Setup: Simply extend the spring frame, insert the unit into your window frame, and let the springs hold it in place. The fan can be quickly removed without damaging the window structure. Performance and Functionality: This ventilation fan excels at removing moisture, smoke, and unwanted odors while improving air circulation. It is ideal for keeping kitchens fresh during cooking, reducing humidity in bathrooms, or providing cooling airflow in small commercial spaces without the need for complex installations. Practical Use Scenarios: 1. Kitchen Ventilation: Quickly extract steam and cooking odors directly out of the window to keep the indoor air fresh. 2. Bathroom Humidity Control: Remove excess moisture to reduce mold growth and maintain a healthier environment. 3. Workshop Air Refresh: Clear out dust, fumes, or stale air in small work areas or craft rooms for a cleaner and more comfortable space. This retractable window exhaust fan offers the convenience of adjustable sizing, durable materials, quiet operation, and simple, drill installation — making it a practical and reliable choice for everyday ventilation needs.