This work considers the enhancement of indoor bioaerosol removal efficiency by liquid coating of the antimicrobial agent chitosan onto polypropylene fibrous filters (CCFs). Escherichia coli (E. coli) and Bacillus subtilis (B. subtilis) were chosen as the tested bioaerosols. The results revealed that 2.5% (w/w) of CCFs have significantly higher bioaerosol survival capability (23% and 34% of E. coli and B. subtilis, respectively), compared to an untreated filter (65% and 64% for E. coli and B. subtilis, respectively). Increasing face velocity and relative humidity during operating CCFs could reduce the bioaerosol removal capability. The regression analysis of the experimental findings demonstrated that the higher coating concentration of chitosan had the most positive influence on bioaerosol removal, while the face velocity and relative humidity had a negative influence, but a milder effect was observed (R-2 = 0.83 and 0.81 for E. coli and B. subtilis bioaerosols, respectively). A CCF-loaded air-cleaning device was tested in a real indoor environment and resulted in 80.1% bioaerosol removal within 3 h of operating, which suggests that the chitosan-coated filter has the potential for further application in improving indoor air quality in the future.
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Chen, Yen-Chi
Liao, Chun-Hsing
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Far Eastern Memosrial Hosp, Dept Internal Med, New Taipei, Taiwan
Natl Yang Ming Univ, Dept Med, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Liao, Chun-Hsing
Shen, Wan-Tien
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Shen, Wan-Tien
Su, Chien
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Su, Chien
Wu, Yu-Chiao
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Wu, Yu-Chiao
Tsai, Ming-hsuan
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Tsai, Ming-hsuan
Hsiao, Shui-Shu
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Far Eastern Mem Hosp, Off Med Engn, New Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Hsiao, Shui-Shu
Yu, Kuo-Pin
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
机构:
Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Chen, Yen-Chi
Liao, Chun-Hsing
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机构:
Far Eastern Memosrial Hosp, Dept Internal Med, New Taipei, Taiwan
Natl Yang Ming Univ, Dept Med, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Liao, Chun-Hsing
Shen, Wan-Tien
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Shen, Wan-Tien
Su, Chien
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Su, Chien
Wu, Yu-Chiao
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Wu, Yu-Chiao
Tsai, Ming-hsuan
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Tsai, Ming-hsuan
Hsiao, Shui-Shu
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Far Eastern Mem Hosp, Off Med Engn, New Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan
Hsiao, Shui-Shu
Yu, Kuo-Pin
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Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, TaiwanNatl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei, Taiwan