Biological indicators (BIs) are crucial for validating sterilization processes, providing direct evidence of process efficacy by using live microorganisms. These indicators are used for monitoring both steam and Ethylene Oxide (EO) sterilization cycles, ensuring compliance with safety standards and reducing risks of contamination.
BIs work by incorporating bacterial spores that are highly resistant to sterilization methods. Successful sterilization is confirmed when the spores are destroyed during the cycle, providing assurance of equipment sterility for medical and laboratory use.