The modular multifunctional laboratory fume hood is designed to provide adaptable ventilation solutions for modern laboratory environments. Its modular frame structure supports multiple configurations, including intelligent ventilation, explosion-proof designs, and supplementary ventilation systems to meet different laboratory requirements. The alloy-framed movable window enables smooth vertical operation and incorporates anti-pinch protection for user safety. Reserved utility channels simplify the installation of water, gas, and electrical services, while the aerodynamic guide plate design promotes efficient airflow inside the cabinet. Suitable for research laboratories, pharmaceutical facilities, educational laboratories, and industrial testing centers requiring flexible laboratory ventilation systems.