A jet mill is a type of grinding equipment that uses high-velocity jets of air or steam to reduce the size of particles. It operates by accelerating particles through a nozzle, causing them to collide with each other and break apart. This process is effective for producing fine powders, often used in industries like pharmaceuticals and chemicals. The main advantage of a jet mill is that it can achieve very fine particle sizes without the need for additional grinding media. This makes it suitable for materials that are sensitive to heat or contamination, ensuring a clean and efficient milling process.