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, making it ideal for small area cooling applications. Designed for clean and easy installation, it features a flexible universal tube that delivers cold air precisely to the required location. This device is suitable for continuous and stable operation in demanding industrial environments. Equipped with a built-in control valve, it allows adjustment of 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 of the air flow. During this process, the outer layer of air becomes heated while the inner core cools. As the air moves toward one end, a portion flows back along the center, creating a cold air stream with a temperature reduction of 25°C to 45°C below the inlet air temperature, while the exhaust hot air reaches temperatures below 110°C, thus forming an effective cooling source. Package Contents: 1 x Vortex tube with joint and universal tube Only the above items are included; other accessories are not part of the package Note: Lighting effects and display settings may cause slight variations in color representation between the image and the actual product. Measurement may vary by +/- 1-3 cm.