The definition of a mini split air handler is a system that is used to provide air conditioning to a single room or area. It is a type of ductless air conditioning system that is becoming increasingly popular due to its efficiency and flexibility. Mini split air handlers are typically composed of two parts: an outdoor condenser unit and an indoor air handler. The outdoor condenser unit is responsible for cooling the air, while the indoor air handler is responsible for distributing the cooled air throughout the room or area. Mini split air handlers are ideal for those who want to cool a single room or area without having to install a full-scale air conditioning system. They are also great for those who want to save energy, as they are much more efficient than traditional air conditioning systems. Additionally, mini split air handlers are relatively easy to install and maintain, making them a great option for those who want to save time and money.