Cassette autoclave sterilizers are designed for high-performance, fast sterilization. Cassette autoclaves are small enough to put in patient areas such as an exam room and work fast enough to completely sterilize instruments between seeing patients. Although powerful, these small autoclave machines are gentle enough to avoid breaking or damaging expensive and delicate instruments. Unlike traditional, full-sized and large capacity autoclaves, these models don’t require an entire reservoir of water to complete a full cycle. Cassette autoclaves require a specific amount of heated, distilled water for each cycle.