Adopting European EN 13060 Class B standard, with prevacuum sterilization and post-vacuum drying functions, it can be used for hollow load products type A instruments , solid, all wrapped or non-wrapped instruments. Three pulses pre-vacuum procedure guarantees the elimination of cold air from the cavity and makes sure of perfect saturation of steam and the efficiency of total sterilization. The intelligent microprocessor control system modulates the steam pressure and temperature precisely to meet the effective sterilization results (validated according to EN 554 standard) and the automatic malfunction detecting system will display the default errorcodes on the brilliant large LED, facilitating the trouble-free and smart-guiding maintenance.