Start with the working environment
Evaporative cooling is commonly considered for factories, workshops, warehouses and commercial spaces where a practical fresh-air approach is appropriate.
Assess air movement and exhaust
A complete concept considers where cooled air will enter, how it will reach people and equipment, and how warmer indoor air will exit the facility.
Avoid generic sizing
Area alone is not enough. Ceiling height, local climate, equipment heat and the layout of the work zone all influence selection.