Convair Portable Evaporative Cooler

evaporative cooler
An evaporative cooler (also swamp cooler, desert cooler, and wet air cooler) is a device that cools air through the simple evaporation of water.
a cooling system that cools by evaporation
(Evaporative coolers) (also called swamp, desert, or air coolers) are devices that cool air through the simple evaporation of water. They differ from refrigeration or absorption air conditioning, which use the vapor-compression or absorption refrigeration cycles.

portable
A version of something, such as a small lightweight television or computer, that can be easily carried
a small light typewriter; usually with a case in which it can be carried
of a motor designed to be attached to the outside of a boat's hull; "a portable outboard motor"
A small transportable building used as a classroom
easily or conveniently transported; "a portable television set"

convair
Convair was an American aircraft manufacturing company which later expanded into rockets and spacecraft. Convair existed as a company for the design, development, and manufacturing of high-technology aerospace products, and/or sub-units of them, or else was a subsidiary of a larger corporation.