Only B type cycles are considered safe, when providing sterilization of all 18 load types. Class B Sterilizers are class 1 medical device, extensively used in dentistry, medical and veterinary practices ensuring the safety of doctors, their staff and patients and legally protects their practice. A Class B Autoclave must meet the stringent European Standard EN 13060, which classifies l... https://www.bionicsscientific.com/autoclave-sterilizer/class-b-dental-autoclave-sterilizer.php