Window Exhaust Fan – Retractable, Tool, and Easy to Maintain Key Features and Benefits: Retractable Design for Fit: Equipped with 5 cm retractable technology and a sturdy threestage caliper structure, this fan securely clamps onto window frames using thickened springs. This prevents accidental falls and ensures safe, stable operation without requiring tools or modifications. Designed to fit window openings from 35 cm to 135 cm, making it ideal for a wide range of home and office spaces. Multiple Size Compatibility: Available in an adjustable 35–135 cm range to suit various window sizes. Simply measure your frame and choose the correct fit. Compatible with sliding and casement windows, ensuring reliable installation in kitchens, bedrooms, offices, or any room needing efficient ventilation. Universal Punch Installation: Installs instantly without drilling or tools. The fan clamps onto the window edges securely, allowing normal window opening and closing. for renters or spaces where permanent changes are not possible. Easy to Install and Maintain: The clampon system ensures dropproof stability and quick setup. Detaches easily for cleaning, enabling direct rinsing or dust removal. Supports both horizontal and vertical positioning on either side of the window, offering flexibility for different layouts. Specifications and Performance: Adjustable width: 35–135 cm Secure threestage caliper clamp with thickened springs Quick tool installation Compatible with sliding and casement windows Supports multiple orientations for installation Practical Applications: 1. Home Kitchen – Quickly remove cooking fumes and odors without permanent installation. 2. Bedroom – Improve air circulation and maintain a fresh environment with minimal noise. 3. Office – Maintain a comfortable working space by reducing stuffiness and enhancing air quality. This window exhaust fan delivers dependable ventilation, quick installation, and easy maintenance, making it a practical solution for improved indoor air quality in homes, offices, and other living spaces.