it is old model and dont have outlet for draining dirty water we have to clean it manually and do lot of physical work usually the water becomes stinky once in a month we have to remove the screws and use motor to pump out the water the screws are not stainless steel so they get rusted easily and makes it difficult to remove the wheels get stuck within a month theres no manual how to remove and clean honeycomb the only positive point is its air throwing capacity and ability to cool