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Effect of Treatment with a Natural Extract of Mukdenia Rossii (Oliv) Koidz and Unipolar Ion Emission on the Antibacterial Performance of Air Filters

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Volume: 13 | Issue: 2 | Pages: 771-776
DOI: 10.4209/aaqr.2012.08.0211
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Dae Hee Lee1, Jae Hee Jung2, Byung Uk Lee 1

  • 1 Aerosol and Bioengineering Laboratory, Department of Mechanical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-Gu, Seoul, 143-701, Korea
  • 2 Center For Environment, Health, and Welfare Research, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Korea


Airborne microorganisms are deposited on air filters when these are used to reduce aerosol concentrations in indoor environments. These microorganisms cause various undesirable effects, such as production of unpleasant odors and re-suspension of bacterial and fungal spore bioaerosols into the indoor air. To resolve these issues, we investigated the antimicrobial effects of a natural extract of Mukdenia rossii (Oliv) Koidz and unipolar ion emission against bioaerosols deposited on air filters. The experimental results showed that the natural extract had an antimicrobial effect on the deposited bioaerosols, and that unipolar ion emission enhanced the antimicrobial performance of the natural extract.


Ion Filter Antibacterial performance Natural extract

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