NASA Spinoff

Air Purifiers Eliminate Pathogens, Preserve Food

Product Outcome

altKES and Akida categorize the AiroCide customer-base into three distinct fields: food preservation, health care, and private spaces. As Marc Anderson of the University of Wisconsin explains, “One of the great uses of this device is for removing ethylene, but it really cleans any organic material from the air, including odors, bacteria, volatile organic compounds of all sorts, and will even remove inorganics, like sulfur compounds.”

Food preservation customers include supermarkets like Whole Foods; produce distribution facilities like those operated by Del Monte; food processing plants; wineries; distilleries; restaurants; and large floral shops. Reeves Floral, an AiroCide user, reported 92-percent reductions in airborne mold and a 58-percent drop in airborne bacteria levels in just the first 24 hours it had the units operating in its floral storage warehouse. The AiroCide units can be used in walk-in coolers to preserve freshness of produce during storage and transport, to increase safety in food preparation areas, to kill bacterial contaminants in flowers (botrytis), and to protect against spoilage and contaminants.

AiroCide has seen new consumer applications in food preservation. The technology is now incorporated into a line of refrigerators, high-end consumer models that preserve freshness and reduce food waste. The refrigerator recycles the air every 20 minutes, reducing odors, viruses, and bacteria, as well as eliminating the presence of veggie-wilting ethylene.

The same technology has also seen use in remote regions of the world, where harsh environments and underdeveloped infrastructure complicate food storage and distribution. AiroCide units have currently been deployed to India and the Gulf Cooperation Council, which includes the countries of Bahrain, Kuwait, Quatar, Oman, Saudi Arabia, and the United Arab Emirates. In these areas, where refrigerated trucks carry groceries from rural farmland to towns miles away, the AiroCide unit preserves freshness and prevents food spoilage. The units are also found in food storage facilities, preventing mold growth and the spread of disease.

In the health care arena, AiroCide units have been incorporated into doctors’ clinics and operating rooms, as well as in waiting areas, an oft overlooked location rife with germs and bacteria like respiratory influenza or mycobacterium tuberculosis and frequented by people with compromised immune systems. Operating rooms are similarly prone to germ and bacteria infiltration. The rooms are cleaned and sanitized initially, but the incoming doctors, equipment, and even the patients contaminate the air. With AiroCide units mounted in the ceiling, an operating room becomes safer for all inhabitants, as harmful bacteria like methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus, and the fungi Penicillium and Aspergillus are removed from the air. In addition to eliminating virtually all known airborne germs and diseases, the technology reduces the burden on high-efficiency particulate air (HEPA) filters and laminar flow environments. These same air-cleaning properties have also been applied to neonatal wards.

In addition to preserving produce and maintaining healthy air in medical settings, the AiroCide units have been adapted for use in everyday living environments. In hotels, for example, the units eliminate mold, mildew, germs, and unwanted odors. These same features are also useful in offices, where illnesses caused by airborne organisms can lower productivity. In homes, the AiroCide units help eliminate the growth of mold and fungi as well as eliminate allergens like pet dander and dust mites.

AiroCide® is a registered trademark of KesAir Technologies LLC.