Convenient, reliable system for monitoring effectiveness of sterilization and sterilizer performance. Bacterial spore test strips may be used to test all sterilization processes — Steam, Chemical Vapor (Chemiclave), Dry Heat and Ethylene Oxide. Mail-in envelopes are convenient for practice to use and test results are available within 24 hours of receipt at the third-party laboratory. Confidential reporting available online with failure results communicated immediately.