STERIZONE® VP4 Sterilizer

  • Single programmed cycle simplifies staff operation and training
  • Mixed load capability eliminates instrument sorting and sequencing
  • 34 kg total mixed instrument load weight for high throughput
  • Dual H2O2 and O3 sterilants deliver high sterilization lethality
  • Single and pass-through models

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STERIZONE® VP4 is a low-temperature (41°C) sterilizer that utilizes the dual-sterilants of vaporized hydrogen peroxide (H2O2) and ozone (O3) to achieve terminal sterilization of heat and moisture sensitive medical devices.

STERIZONE® VP4 is the only low temperature sterilizer that can process a mixed load consisting of general instruments, single or double channeled flexible endoscopes, and single or double channel rigid endoscopes, in the same cycle with load weights of up to 34 kg. Its single pre-programmed cycle removes the guesswork and potential risk for human error as there is no need to sort instruments and choose the appropriate cycles as with other machines.

STERIZONE® VP4 is manufactured by TSO3 Inc. in Canada.

Technical data

Single door Double door
External dimensions (WxDxH) 775x1235x1918 mm 775x1130x1930 mm
Internal dimensions - Chamber volume 125 L 125 L
Weight 565 kg 626 kg


The stainless steel loading cart provides ease of movement and is designed for the ergonomic and efficient transfer of the loading rack into the unit. Four lockable swivel wheels allow the cart to be maneuvered around tight corners. Lower shelving provides additional storage space for supplies.

The specially designed loading rack is equipped with three perforated shelves, two of which are height adjustable, allowing the operator to configure the rack to accommodate all types of mixed loads. The configurable rack is a key system component in achieving high productivity and load throughput. The STERIZONE® Load Rack and Cart used in combination provides a "zero gravity" solution for the user eliminating the need to lift heavy loads for introduction to the chamber.

Sterility Assurance
The unique design of the STERIZONE® Test Pack uses the STERIZONE® Biological Indicator and Chemical Indicator combined with a diffusion restriction element. The result is a sterility monitoring device that provides equivalent or greater challenge than worst case devices and loads.

Product Innovations

  • First (and only) dual sterilant low temperature sterilizer cleared by the FDA for sale in the USA.
  • First low-temperature sterilizer with a load-sensitive Dynamic Sterilant Delivery System™.
  • First documented "wet" cycle with validated micro-condensation sterilant layer.
  • First Biological Indicator Test Pack to survive past the first half-cycle.
  • First single cycle, low temperature sterilizer cleared to process up to a 34 kg load of general instruments, flexible
    channeled endoscopes,and rigid and semi-rigid channeled devices.



Product brochure

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