This is the Zeus 900 air mover, we link this to the dehumidifiers in our drying room systems for extra air movement which dries clothing and kit a lot quicker than just a dehumidifier. We link it in such a way so that when the kit is dry and the dehumidifier turn off and goes into a standby mode - so does this unit so it only uses as much power needed to dry the kit making it very cost effective. we tend to use this connected to the HD55 and HDi90 units for smaller drying rooms.