cooler

A cooler is a device or container used to lower and maintain the temperature of its contents, typically to keep food, drinks, or other items fresh and safe. It works by limiting heat transfer through insulation and sometimes by actively cooling through refrigeration or chilling mechanisms. Coolers are common in outdoor activities, picnics, and transport, providing a portable way to preserve perishable items. They come in various types, from simple insulated boxes to sophisticated units with built-in cooling systems, ensuring that temperature-sensitive items stay at a desired cold temperature for extended periods.