Matching Pairs Sterilization definitionsOnline version participants will be able to identify different types of sterilization and their mechanism of action by Shereen ElMasry 1 Positive pressure displacement type (B-type) 2 Hot air sterilization (Hot air oven) 3 Flaming sterilization 4 Incineration 5 Gravity displacement type autoclave 6 Negative pressure displacement type (S-type) This is the common type of autoclave used in laboratories. In this type of autoclave, the steam is created inside the chamber via the heating unit, which then moves around the chamber for sterilization. in this type of autoclave the vacuum generator pulls out all the air from inside the autoclave while the steam generator creates steam. The steam is then passed into the autoclave. Heating equipment above 170- or 180-degrees Celsius using convection currents In this type of autoclave, the steam is generated in a separate steam generator which is then passed into the autoclave. Passing metals through flam Sterilization is done by combustion of materials to form ash