Freezer units are appliances designed to store food and other perishable items at low temperatures, typically below 32°F (0°C). They work by removing heat from the interior, allowing items to freeze and remain preserved for extended periods. Freezers come in various types, including upright and chest models, catering to different storage needs and space requirements. These units are commonly used in homes, restaurants, and grocery stores to prevent spoilage and waste. Many modern freezer units feature adjustable temperature settings, energy-efficient designs, and additional compartments for organizing items. They play a crucial role in food preservation and meal planning.