When the equipment is working, the dry ice is transferred into the ice mixing chamber at the discharge port of the funnel. The ice cutting wheel has grooves in the ice mixing chamber. The grooves can accommodate dry ice particles. After entering a relatively closed space and mixing with high-pressure air flow, it is pushed by the air flow through the ice conveying pipe and is constrained to a specific air flow by the handle spray gun. A physical cleaning principle taken away to achieve the purpose of cleaning. Strong adhesion according to dirt ,Adjust the appropriate amount of ice out.