A mini split interior unit is a type of air conditioning system that is used to cool or heat a single room or area. It is a great option for people who want to save money on their energy bills, as it is much more efficient than a traditional air conditioning system. The mini split interior unit is made up of two main components: an outdoor condenser and an indoor air handler. The outdoor condenser is responsible for collecting the heat from the outside air and transferring it to the refrigerant. The refrigerant is then circulated through the indoor air handler, where it is cooled and then released into the room. The indoor air handler also filters the air and circulates it throughout the room. This system is much more efficient than traditional air conditioning systems, as it does not require ductwork and is much easier to install.