It takes 9 minutes to sterilize unwrapped instruments. This autoclave has four(4) trays. One push of a button, and leave the rest to automation. Please Note: This Sterilizer is 230 Volts/10 Amps 50/60 Hz. 2 year parts and labor warranty. The new EZ10 fully automatic autoclaves feature a functional, contemporary design that incorporates an attractive bright blue LED display that is clear and easy to read. Very simple and easy to use. Active closed door Hepa Filtered drying system. These Tuttnauer fully automatic autoclaves fill, sterilize, exhaust and dry at the touch of a button. All EZ models feature automatic venting and a closed door active drying system w/High Efficiency air pump & Hepa filter to maintain sterility and circulate hot air for fast drying.