A car parking fan, commonly known as a jet fan or impulse fan, is an advanced ventilation solution designed specifically for underground parking areas, basements, and tunnels. These fans are used to control air quality by removing harmful gases such as carbon monoxide (CO), smoke, and heat, ensuring a safe and breathable environment. Unlike traditional ducted ventilation systems, jet fans operate on the impulse ventilation principle, eliminating the need for extensive ductwork. They generate high-velocity air jets that push contaminated air towards exhaust points, providing efficient and cost-effective ventilation.