According to the company, it was designed to be more affordable than Carrier's prior control systems, and relatively easy to install on existing equipment. The new system actively controls oxygen and carbon dioxide levels and removes ethylene, a hormone emitted by produce that accelerates ripening. Oxygen and CO2 levels can be independently set at levels that produce optimum results for a given commodity, Carrier said. XtendFRESH slows ripening and "significantly" lengthens the amount of time that produce can spend in refrigerated transit, by more than double in some cases, the company claimed. The system includes a self-regenerating activated carbon-scrubber assembly, which removes ethylene and CO2 created by the ripening process. Automated fresh-air ventilation helps to maintain optimum oxygen levels for the specific cargo inside the container. The XtendFRESH system will be included as an option with new equipment purchases, and a special version will be available for new units, allowing for easier upgrade at a later date.

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