Polystar One Outdoor With 2(1hp) Indoor And 2(1.5hp) Indoor Unit Split Air Conditioner PV-c440+4 has a durable design, it is very efficient and reliable. It is also energy-efficient as it comes with a 10-hour auto power function. The amazing split unit AC has a quiet operation and it gets the room cool and fresh almost immediately you switch it on. It delivers top performance at all times due to its high-efficiency internal thread copper pipe. The Remote-Controlled Split Unit Air Conditioner features an auto restart which ensures it comes up automatically when there is a power cut. It also comes with an auto protection and chord response. It is very easy to maintain this air conditioner, it has a panel and filter which you can remove for easy cleaning.