Portable evaporative coolers provide cool, humidified air in areas without combustible vapors, gases, or dust. These wheeled swamp coolers pull in warm surrounding air, pass it through wet media to remove heat, and blow out the cooled air. They require regularly draining and cleaning the water tank and allowing the media to dry thoroughly between uses to prevent odors and clogging from sludge buildup.

Hazardous-location portable evaporative coolers have sealed switches, cords, motors, and pumps to prevent sparking while delivering cool, humidified air to potentially hazardous environments. They are rated for Class 1, Division 2 areas where flammable gases, vapors, and liquids are handled or used within enclosed containers or systems, but are not normally present in concentrations high enough to be ignitable. They're commonly used in chemical plants, refineries, fuel depots, and garages. These wheeled swamp coolers pull in warm surrounding air, pass it through wet media to remove heat, and blow out the cooled air. They require regularly draining and cleaning the water tank and allowing the media to dry thoroughly between uses to prevent odors and clogging from sludge buildup.

Portable misting coolers circulate atomized water vapor that mixes with surrounding air to cool and humidify it. These wheeled coolers have no evaporative pads to change out, but require regularly draining and cleaning the water tank to prevent odors and clogging from sludge buildup.

These accessories keep portable evaporative and misting coolers clean and functional. They're used for applications such as covering units that aren't in use, preventing odors and water scale deposits, making power connections, and replacing worn or broken components.