A hot air oven is a laboratory instrument that uses dry heat to sterilize laboratory equipment and other materials. A hot air oven, also known asa  forced air circulating oven. We can sterilize Glassware (like petri dishes, flasks, pipettes, and test tubes), Powder (like starch, zinc oxide, and sulfadiazine), and Materials that contain oils, Metal equipment (like scalpels, scissors, and blades) by using a hot air oven. Materials like surgical dressing, rubber items, or plastic materials can not be sterilized in a hot air oven.

To destroy microorganisms and bacterial spores, a hot air oven provides extremely high temperatures over several hours. Most of the medical industries use hot air ovens to sterilize laboratory instruments and materials due to their simple standard operating procedure and low price. It also provides quick-drying processes.