Pass-box with air shower is a kind of assistant equipment for clean room. Mainly be used in passing the small articles equipment between clean room and unclean room, different class and different pressure clean room. One side, it is affected for air brake and protect the high pressure discharged in the high class clean room. On the other hand, it can achieve the showering result during the passing for ensuring goods clean to enter the clean room and reduce the goods to bring the pollution extent. The showering time can according to the practical need within one minute adjustable. It can reach showering and save energy for the maximal limit.