Split system air conditioners are a popular choice as they are affordable and easy to maintain. A split system consists of an outdoor unit which has the condenser, and an indoor unit which contains the fan coil. The fan coil removes warm air from the room and recirculates cool air back in. During winter this can be reversed to warm the room on cold days.
Keeping your split system clean is important for a more efficient air conditioning unit as well as for maintaining the air quality in your home. The filters inside a split system unit catch microbes and dust from the surrounding environment. If they are not cleaned regularly the dust can build up and collect moisture or mould. This is not only bad for your air conditioner as it has to work harder to push air through, but it also affects the air quality of the room. The filters should be cleaned regularly; based on how often you use your air conditioner.