Abstract: An ice chest air conditioner for cooling a pet in a stationary motor vehicle is provided. The air conditioner has an insulated ice chest reservoir. The reservoir contains a volume of ice. An insulated lid is a hollow double walled construction defining an interior cooling plenum and a separate exhaust duct. The cooling plenum has an air intake vent, and a cooled air exhaust vent, and a heat exchanger and fan assembly. A fan is operable to drawn in through the air intake vent, past the heat exchanger, and outwardly into an interior of the reservoir through the cooled air exhaust vent. Conditioned air from the reservoir is delivered into an interior of the motor vehicle through the air exhaust duct A fluid pump recirculates a volume of melting ice water through the heat exchanger. A snorkel is connected to the air exhaust duct for directing the conditioned air into an interior portion of the motor vehicle. A monitor and control is in operable power and control communication with the pump and fan assembly.