With stainless steel interiors and fibreglass insulation between the walls to maximize thermal efficiency, hot air oven effectively sterilizes glassware, instruments and samples. Glass observation window eliminates the need of opening the door. Forced air convection system maintains temperature uniformity. - 304 stainless steel, mirror polishing processing, semicircular arcs at corners easy to clean and maintain - The space between the shelves in the chamber is adjustable - PID controller with over temperature alarm and Timer function ensures precise and reliable control - Ceramic fiber door seal, which can run at high temperature for a long time and has a long service life