Industrial Purpose Hot Air Oven is designed to destroy bacteria, virus, fungus in sterilized surgical instruments, glass wares by application of dry heat with temperature ranging between 50 ° C to 250 ° C. The Oven has double walled chamber. The Oven has air ventilation at the two sides. The Industrial Purpose Hot Air Oven is provided with a panel, which is on the bottom of the oven having a thermostat, rotary switch, On/Off switch and two pilot lamps.