Cold air gun is a portable cold air source widely used in mechanical drying or cooling processes. It uses compressed air to lower the air temperature and produce a low-temperature airflow. Clean and easy to install, with a flexible universal tube that delivers cold air precisely to the required location. An ideal solution for spot cooling applications in demanding industrial environments, designed for continuous and stable operation. Features a built-in control valve to adjust both airflow volume and output temperature as needed. Color: As shown Material: Plastic + metal Working Principle: The cold air gun operates by directing compressed air into a vortex tube at high speed, causing rapid rotation. During this process, the outer layer of air heats up while the inner core cools down. As the airflow moves toward one end, it reverses along the center, creating a cold air stream that can be 25°C to 45°C below the inlet temperature, while hot air is expelled separately at temperatures up to 110°C, forming an efficient cooling source. Package Contents: 1 x Vortex tube with joint universal tube Note: Other items not included. Note: Slight color variations may occur due to lighting and display differences. Measurement error allowed within +/- 1-3 cm.