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ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
Journal of Odor and Indoor Environment Vol.1 No.1 pp.103-113

공기청정기와 공기청정장치에 의한 미생물과 바이러스의 제거 효과

김호중*, 이광희1), 남기석2), 성백린1), 변종길2), 최호선
LG 전자 디지털 어플라이언스 연구소, 1)연세대 생명공학과 생물산업소재연구센터,
2)FITI 부설 한국소비과학연구센타

The Effect of Air Cleaner and Air-cleaning Devices for the Removal of Microorganisms and Viruses

Ho-Jung Kim*, Kwang-Hee Lee1), Ki-Seok Nam2), Baik-Lin Seong1), Jong-Geel Byun2), Ho-Seon Choi
Digital Appliance Research Laboratory LG Electronics Inc.
1)Department of Biotechnology and Bioproducts Research Center, Yonsei University
2)An Auxiliary Organ FITI Testing & Research Institut
Received 9 July 2004, accepted 9 September 2004


The performance of various air-cleaning devices and an assembled air cleaner has been evaluated for theremoval of biological pollutants in indoor air. Bacteria, fungi, and viruses were sprayed in a test chamber,and air samples in the chamber were taken for analysis. Air-cleaning devices - UV lamp, ion generator, anUV LED and plasma electricity dust collector - were tested for their ability in the removal of microorganismsin the air. The UV lamp and the ion generator tested exhbited complete sterilization effect within 4hrs ofoperation. Other devices were less effective: The extent of removal by the UV LED and the plasmaelectricity dust collector after 6hrs of operation was about 20% to 82%, depending on the microorganismstested. The performance of an assembled air cleaner was much superior to individual air-cleaning devices:the extent of removal being 97.6%, 99.1%, 98.7%, and 93.7% for Staphylococcus aureus (Gram(+) bacteria),Escherichia coli (Gram(-) bacteria), Aspergillus niger and Penicillium funiculosum (fungi), respectively, after3hrs of operation. The removal of influenza virus was even more effective, with 99.9% of removal within25min of operation. The results show that the air cleaner is effective for the removal of microbial and viralpathogens in the air.