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A large grocery chain was looking to extend the shelf life of food and reduce their “shrink” rate on produce, meats and seafood.



The grocer implemented patented Puradigm technology in their produce display cases, meat and deli cases, walk-in coolers and their meat cutting room. After installing the technology, these areas were monitored for 12 months and compared to the prior year. Food freshness and quality was maintained longer which led to over 63% reduction in food “shrink” loss. The General Manager commented “the multiple benefits and enormous savings received make this a must have technology in all of our stores”.

Grocery Store Shrink Loss Case Study Results

Test Criteria
2013 Without Puradigm
2014 With Puradigm
Test Criteria
2013 Without Puradigm
2.3% loss
2014 With Puradigm
0.85% loss
Test Criteria
2013 Without Puradigm
2014 With Puradigm
Many unsolicited comments on “freshness” of fresh food areas
Test Criteria
2013 Without Puradigm
Issues with food odors in the walk-in coolers, and fish and meat cases
2014 With Puradigm
Noticeable reduction of food odors, especially in the meat & fish areas
Test Criteria
2013 Without Puradigm
Quarterly cleaning of cooling coils
2014 With Puradigm
Frequency of cleaning reduced by 75%


Our Puradigm Technology Solutions are the perfect partner for waste reduction initiatives, such as the Kroger Zero Hunger Zero Waste initiative. According to Rodney McMullen, Kroger’s chairman and CEO more than 40 percent of the food produced in the U.S. each year goes unconsumed, while one in eight people struggle with hunger. “That just doesn’t make sense,” Mr. McMullen said. “As America’s grocer and one of the largest retailers in the world, we are committing to doing something about it.” We are committed too. We are offering a proactive solution to destroy airborne and surface pathogens, including viruses, bacteria, VOC’s, mold and odors.
“Pure Air Environmental stands ready to share in the corporate responsibility with grocers like Kroger to reduce waste. Our technology advancements will significantly reduce spoilage from produce, meats, seafood and floral with astonishing success by removing 99.9% of all mold and bacteria from the indoor air environment, as well as, surfaces”
Jon Hartley, Marketing Director with Pure Air Environmental


  • Unlike a passive filter system, our systems aggressively treat the air external to the system, or “at the contaminant source”.
  • Puradigm systems are designed for continuous use in occupied areas.
  • Effective against a wide range of airborne and surface contaminants including harmful microbiological pathogens, viruses, bacteria, chemicals (VOC’S), mold and mildew.
  • Eliminates, does not mask, offensive odors.
  • Advanced oxidation products are considered “friendly green oxidizers” as they revert back to vapor, carbon dioxide, and oxygen.
  • Validated as safe and effective for occupied buildings and residences.
  • Reduced spoilage at all levels to rapidly enhance the ZERO HUNGER ZERO WASTE initiative.
  • Significant savings of excess waste up to 63% as evidenced by a competitor.
  • Bacterial contamination control available at all levels of the food distribution cycle.
  • Reduced bacterial exposure to staff and visitors.
  • Reduction in staff absenteeism and associated medical costs therefore increasing productivity.
  • Reduction in cleaning time and chemical costs.
  • Reduction of any unpleasant odors in the facility.


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