The Hessaire MC92V 11,000 CFM evaporative cooler is our largest and most powerful cooler. This performance is achieved through expanding air-intake areas to the high-density XeL50 rigid media. These coolers have 3 media panels instead of a single panel found on most mobile coolers. 3 panels allow more air-intake area and reduce pre-rotation of the air to the prop, which translates into lower static pressure and more efficient air delivery to the prop. The high-density XeL50 media provides 80% more evaporation surface compared to regular density media.