cooler boxes

Cooler boxes are insulated containers designed to keep perishable items like food and beverages cold. They work by reducing heat transfer through thick walls, insulation materials, and sometimes cooling elements like ice packs or gel packs. This helps maintain a lower temperature inside, preventing spoilage during transportation or storage. Cooler boxes are commonly used for picnics, camping, or transporting groceries, ensuring freshness and safety without relying on electricity. Their effectiveness depends on insulation quality, opening frequency, and external conditions. Overall, they are practical tools for preserving temperature-sensitive items in various settings.