Abstract: A portable air conditioning system has a wheeled base and an insulated housing in a shape of a cube. A louver is located on a housing front panel. A louver and a pair of handles are located on a housing back panel. An insulated dividing panel divides an upper housing compartment and a lower housing compartment. A compressor coupled to a motor, a condenser, and a receiver are located in the lower housing compartment. An evaporator is located in the upper housing compartment. A suction line connects the accumulator to the compressor. An expansion tank is connected to the accumulator. A condensation pan is located above the dividing panel. An evaporator fan is located in the upper housing compartment and a condenser fan is located in the lower housing compartment. A thermostatic expansion valve is located on an inlet to the evaporator.