Round air diffuser have many function for people. Round air diffuser can provide the oxygen needed by the personnel in the building to breath,Dilute indoor pollutants or odors,Remove the pollutants produced by indoor process engineering and supplement the amount of discharge air,remove excess heat from the building to reduce humidity etc.Round air diffuser usually use to different place like supermarket mall,residential quarters,kitchen,shower room,factory,fire control,office,hospital,hotel,air conditioner etc.