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Ozone generator methods for retrofit of enclosed and air-conditioned environments

  • US 10,555,548 B2
  • Filed: 05/30/2019
  • Issued: 02/11/2020
  • Est. Priority Date: 09/09/2016
  • Status: Active Grant
First Claim
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1. A method of operating a conditioned airflow ozone generator in an enclosed airspace in a previously existing conditioned airflow to extend produce and other foods shelf-life after shipment, the method comprising:

  • sterilizing an enclosed airspace lacking produce and other foods with a conditioned airflow ozone generator placed in a previously existing conditioned airflow within the enclosed airspace, where the enclosed airspace maintains from 4 to 8 ppm ozone for a time period from 10 to 20 minutes;

    placing produce and other foods within the enclosed air space;

    disinfecting the produce and other foods within the enclosed airspace with the conditioned airflow ozone generator placed in the previously existing conditioned airflow, where the enclosed airspace maintains from 2 to 3.9 ppm ozone for a time period from 15 minutes to 2 hours; and

    managing the produce and other foods within the enclosed airspace with the conditioned airflow ozone generator during transport of the produce and other foods, where the enclosed airspace maintains from 0.5 to 1.5 ppm ozone for a time period after termination of the disinfecting.

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