But when the hottest hours of the hottest days arrive, especially in warmer parts of the world, the air gets too hot and humid to cool the servers effectively. This is when we use evaporative cooling, in which water is sprayed onto an absorbent medium that Amazon water specialist Beau Schilz describes as “a sophisticated, giant sponge.” Hot air flows through this water-soaked material, and as the water evaporates, it pulls heat from the air, cooling it by five to 10 degrees.
“It’s like sweating,” Schilz explains. “The evaporative process pulls the heat off of your body so you don’t overheat.”
