Difference between Class B and Class N autoclave?

Autoclaves, also known as steam sterilisers, play an essential role in the sterilisation of instruments. There are many types of steriliser, with Class B and Class N being the two most commonly used. In this article from Scitek, we will provide you with a simple and clear explanation of the core differences between the two types of steriliser in the shortest possible time.

Class B VS Class N autoclave

The main difference between Class N and Class B autoclaves is how they remove air from the sterilisation chamber prior to sterilisation.
Class N autoclaves use steam from a generator or boiler to create a downward displacement that removes air from the sterilisation chamber.
Class B autoclaves use a vacuum pump to completely remove the air from the sterilisation chamber, allowing better penetration of the steam into the load.
Unlike the Class B autoclave, the Class N autoclave does not guarantee 100% air removal. Therefore, the Class B autoclave is better suited for more difficult loads containing porous or hollow materials. the Class N autoclave is suitable for most standard applications