Close coupled field technology

CCFT technology in an air sterilization duct unit.

Close coupled field technology (CCFT) is an air sterilization process that kills 99.999% of microbes, bacteria (including bacterial endospores), viruses, germs, mold spores, volatile organic compounds (VOCs), fungal air contaminants and chemical agents and their associated odors.[1]

CCFT utilizes small high-voltage coils within a Faraday cage to generate a non-thermal plasma field to destabilize inorganic and organic compounds at the molecular level.[2] As air is passed through this electrostatic field it is converted to ozone which oxidizes airborne contaminants.[3] Enclosing the ozone retains its ability to remove contaminants quickly while making it safe for populated environments.[4]


CCFT was originally invented by David Hallam to remove unpleasant odors from a nursing home where an ailing uncle was a resident.[5] When the nursing staff noticed a dramatic decrease in the spread of infections, this led Hallam to further investigate CCFT. Hallam went on to develop the AirManager system, which uses a combination of CCFT and high airflow filtration (HAF), which filters any dust, pollen, airborne contaminants and resultant debris from the CCFT process down to 0.1 micrometres.[6]


  1. ^ Pelekani, Liggie. “Equipment News - Airmanager: the new revolutionary air cleaning system”, [1], January 15, 2010.
  2. ^ Wagner, Siobhan. “AirManager cleans cabin air”, The Engineer, September 21, 2009.
  3. ^ “New Weapons In The Fight Against Superbugs”, Medical News Today, May 2 , 2007
  4. ^ Edited by the Laboratorytalk editorial team. “Kill 99.7% of airborne bacteria and viruses”, [2] August 12, 2005.
  5. ^ Edited by the Laboratorytalk editorial team. “Kill 99.7% of airborne bacteria and viruses”, [3] August 12, 2005.
  6. ^ Pelekani, Liggie. “Equipment News - Airmanager: the new revolutionary air cleaning system”, [4], January 15, 2010.

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