Retractable Window Exhaust Fan – Secure, Tool Ventilation for Any Room Key Features and Benefits Retractable Design for Fit Equipped with 5 cm retractable adjustment and a threestage caliper structure, this fan securely clamps onto your window frame using thickened springs. Designed to prevent accidental falls, it installs easily on window openings between 35 cm and 135 cm wide. No tools or structural modifications are required. Multiple Size Options for Maximum Compatibility Available in retractable sizing from 35 cm to 135 cm, ensuring compatibility with a wide range of window types. Simply measure your window frame to choose the right fit. Includes a power supply for immediate use in any room, whether for home, kitchen, bedroom, or office ventilation. Universal Punch Installation Installs in minutes by clamping directly to the window edge. Designed not to interfere with the opening or closing of sliding or casement windows. No drilling, screws, or professional installation needed – ideal for rental properties or quick setup in multiple locations. Easy Maintenance and Flexible Positioning The dropproof clamping system keeps the fan securely in place during operation. Detaches just as easily for direct flushing or dust removal. Suitable for left or right placement, as well as horizontal or vertical installation, giving you full flexibility without restricting window function. Practical Use Scenarios 1. Kitchen – Quickly remove cooking fumes and odors with stable, efficient ventilation mounted directly onto the kitchen window. 2. Bedroom – Improve air circulation overnight without sacrificing window usability or requiring permanent fixtures. 3. Office – Maintain fresh air during busy work hours in enclosed office spaces without complicated setup. Materials and Performance Constructed with durable components to ensure stable performance and safety during extended use. The springloaded clamping system and adjustable design offer a secure hold and versatile installation suited to various spaces. Optimized for reliable airflow and consistent ventilation across different environments. This Window Exhaust Fan offers a safe, adaptable, and lowmaintenance solution for boosting airflow and maintaining fresh indoor air, while protecting your windows from unnecessary alterations.