The superlor performance of ball type nozzle as air supply outlet,without air duct,less space,is is mainly used for direct air supply system in large space,Thermal performance parameters are same as the ordinary air conditioning unit,P2-P8 for detail.Inner spheres of ball-type nozzlecan be adjusted within a certain range,range far and wide,It is widely used in the thertre,the gym,airport,supermarket,workshop,large commercial buildings.