Adjustable Size Range Fits window widths from 39 cm to 189 cm, making it compatible with most vertical and horizontal window types. Designed for easy integration in homes, kitchens, offices, or light commercial spaces. Includes power supply for immediate use. Retractable Design for Secure Fit Features a 10 cm retractable section with a threestage caliper clamp and thickened spring mechanism. This ensures a firm, stable grip on the window frame for safe and reliable operation, even during extended use. Durable DoubleSided Stainless Steel Mesh Equipped with stainless steel mesh on both sides to block mosquitoes and other insects. Safe around children due to its fine mesh design. Waterproof and sunresistant, maintaining performance in hot, humid, or rainy conditions without risk of damage. Tool Installation Punch, quick installation process—simply clicks into place with no drilling or tools required. Suitable for vertical mounting and fits securely along window edges without affecting normal opening or closing functions. Applications Ideal for kitchen use to quickly remove cooking odors and steam. Effective for home ventilation, enhancing air flow in bedrooms or living rooms. Practical in small commercial spaces for reducing indoor humidity and improving air circulation. This sliding window fan offers versatile sizing, secure mounting, and protective mesh construction while providing convenient setup and dependable ventilation across multiple environments.