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.
1 Standing Pad-A cooler is also a stool, a seat, and a place to put things. 2  Orion is the only brand with a standard standing pad. 3  It is sharp looking with the Orion logo stamped into it. 4  It is thick and provides good traction for standing on.