1 Peer-reviewed (refereed or scholarly) journals-Articles are written by experts and are reviewed by several other experts in the field before the article is published in the journal in order to insure the article's quality.
One key component to an efficient walk-in cooler is its insulation. A standard walk-in cooler will have between 2 and 4 inches of Styrofoam insulation within its walls and a rubber sealing gasket around its door to help ensure that it is both airtight and well-insulated against the temperature of the air outside.
Many models, such as the Hessaire MC17M 800 CFM Evaporative Coolers or the Portacool Cyclone 110 Portable Evaporative Cooler, are lightweight and even easier to transport. Oftentimes, however, lightweight swamp coolers are better suited for personal cooling, operating much like a personal heater.