실내용 공기청정기 유형별 실내환경개선 성능에 대한 비교평가

Abstract

This study was conducted to evaluate the efficiency of indoor air cleaners and to inform howto select them correctly to the users. The efficiencies of removing suspended bacteria per hourwere 64.3± 13.1% for filter, wet, and complex type, respectively, which showed the complextype was the most efficient. The removal efficiencies of formaldehyde (HCHO) after two hoursoperation of air cleaners showed 88.3% and 81.1% for filter and wet type, respectively. Theefficiency of complex type, with removal rate of 55.5~58.4%, was decreased after 30 minutesoperation. Therefore, it is recommended to perform over 60 minutes when doing air cleanercertification test for HCHO removal efficiency. Generally, air cleaners having low wind volumeshowed higher efficiency.All tested air cleaners had no potential for removing of volatile organic compounds (VOCs),which is toxic substances, and it is desirable to develop a device which can control thesesubstances. The results also confirmed that there was no ozone production from all tested aircleaners. And it is recommended to ventilate for 20 minutes every four hours to maintain 50%ventilation status.