Includes: 50 units/Box Instructions for Use Features and Benefits: Provides BI results in 24 minutes in 3M Attest 490M Auto-readers with software version 4.2.7 or greater Dynamic-air-removal (Pre-vacuum and SFPP): 132˚C (270˚F) 3 or 4 min. 135˚C (275˚F) 3 min. Meets ISO and FDA performance requirements for biological indicators Contains viable organisms that provide a direct measure of lethality Puts instrument turnaround speed into overdrive Puts instrument turnaround speed into overdrive for improved patient safety