Based on the principle of forced air circulation, hot air ovens are used in labs to conduct tests for ageing effect on the physical properties of different materials like yarns, fabrics, papers, and other materials. Furthermore, hot air ovens with forced air flow are also used for high quality drying and baking purposes in the laboratory, medical/biomedical, pharmaceutical and textile... https://www.bionicsscientific.com/laboratory-oven/hot-air-oven.php