A hot air oven is a laboratory device used for sterilization, drying, and heat treatment of materials at high temperatures. It operates by circulating hot air to ensure even heating, making it ideal for sterilizing glassware, tools, and non-flammable materials. Commonly used in microbiology, pharmaceuticals, and research labs, a hot air oven provides a reliable, contamination-free environment for various processes. Its precise temperature control and durability make it an essential tool for quality and safety in industrial and laboratory settings.