It can only use compressed air to lower the air temperature to produce low-temperature airflow. tools, electronic components cooling, the cooling of welding and so on, it is an perfect tool for small area cooling. Features: Cold air is the cold air source which is easy to carry, it is widely used in mechanical drying or cooling process. Clean and easy to install, and its flexible universal tube delivers cold air to the location where it needs to be cooled., Weight: 0.34612575134 pounds, Manufacturer: NONDK