As outlined by Science Info in the article “Hot Air Oven: Definition, Principle, Instrumentation and Application,” hot air ovens are essential sterilization tools used extensively in scientific, medical, and research laboratories. These ovens rely on dry heat sterilization, making them ideal for heat-resistant materials like glassware, metal tools, and certain powders.
A hot air oven works on the principle of heat conduction, where dry heat is transferred from the oven’s external surfaces to the interior of objects. This method gradually and effectively eliminates microorganisms—including bacterial spores—by oxidizing their cellular components. The sterilization occurs layer by layer, making the process both thorough and reliable.
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