Evaporative Coolers

Evaporative Cooling Overview

What Is an Evaporative Cooler?

An evaporative cooler uses the natural process of water evaporation to reduce air temperature while delivering a continuous supply of fresh air. Compared to traditional refrigerated air conditioning, evaporative cooling systems can reduce energy use and simplify long-term maintenance depending on climate and application.

How evaporative cooling works

Warm outside air is drawn through high-efficiency cooling media that is saturated with water. As air passes through the media, heat is absorbed during evaporation, lowering the air temperature before it is delivered into the space.

Key benefits for facilities and workspaces

• Lower energy consumption in hot, dry operating conditions
• Continuous fresh-air delivery rather than recirculated air
• Scalable airflow capacity for large, open, or high-occupancy spaces
• Simplified mechanical systems compared to compressor-based cooling
• Improved suitability for facilities requiring ventilation compliance

For heat safety planning and workplace guidance, reference OSHA’s heat resources here: OSHA Heat Illness Prevention.

Design + Performance

Modular System Design for Scalable Cooling

Premier Industries evaporative coolers are engineered using modular design principles that allow systems to scale with facility size, airflow requirements, and cooling demand. Modular configurations support easier expansion, simplified maintenance, and long-term performance planning.

Integration with ventilation and makeup air

Evaporative coolers can be paired with makeup air strategies to support facilities that require high air exchange rates while maintaining temperature control and occupant comfort.

Best results in hot, dry climates

Evaporative cooling performs best in arid and semi-arid regions where low humidity improves evaporation efficiency. Proper sizing, airflow planning, and media selection are key to achieving consistent results.