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首页> 外文期刊>Energy and Buildings >Particle removal efficiency of a household portable air cleaner in real-world residences: A single-blind cross-over field study
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Particle removal efficiency of a household portable air cleaner in real-world residences: A single-blind cross-over field study

机译：现实住宅中家用便携式空气净化器的颗粒去除效率：单盲交叉研究

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摘要

Portable air cleaners are commonly used to reduce indoor air particles in China, but few studies have evaluated the treatment efficiency under real living conditions. We aimed to evaluate the efficiency of a portable air cleaner in common residences under normal living conditions. A single-blind cross-over field study was conducted in 20 urban residences in Chongqing, China. In each residence, one portable air cleaner was operated without a high-efficiency particulate air (HEPA) filter (sham filtration) for the first 48 h and with a HEPA filter (true filtration) for the next 48 h in the living room. Concentrations of PM1.0, PM2.5, respirable suspended particulate matter (RESP), PM10, and total suspended particulate matter (TSP) were measured simultaneously in indoor and ambient outdoor air. Compared to sham filtration, the average concentrations of indoor air particles were significantly lower when true filtration was used according to paired-sample t-tests (all p-values <0.05). However, indoor concentrations of PM2.5 in 16 (80%) residences were still higher than the World Health Organization's (WHO) air quality guideline during true filtration. The removal efficiencies of the portable air cleaners with HEPA filters for these particles were about 40%. The removal efficiencies for PM1.0, PM2.5, and RESP had significant associations with the room volume, but not with the residence district, season, age of the building, floor level of the apartment, or ambient weather. Our results indicate that a portable air cleaner is effective in improving household air quality, but is not enough to ensure the air quality meeting WHO guideline in all real-world residences in polluted areas. (C) 2019 Elsevier B.V. All rights reserved.
机译：在中国，便携式空气净化器通常用于减少室内空气中的颗粒，但是很少有研究评估实际生活条件下的处理效率。我们旨在评估普通居住条件下普通住宅中便携式空气净化器的效率。在中国重庆的20个城市住宅中进行了单盲交叉现场研究。在每个住宅中，在起居室的前48小时内运行的一台便携式空气净化器在没有高效微粒空气（HEPA）过滤器（深层过滤）的情况下，在接下来的48小时内运行有HEPA过滤器（真实过滤）。在室内和室外室外空气中同时测量PM1.0，PM2.5，可吸入悬浮颗粒物（RESP），PM10和总悬浮颗粒物（TSP）的浓度。与假过滤相比，根据成对样本t检验，使用真实过滤时，室内空气颗粒的平均浓度显着降低（所有p值<0.05）。但是，在真正过滤期间，室内16个（80％）住所中PM2.5的浓度仍高于世界卫生组织（WHO）的空气质量指南。带有HEPA过滤器的便携式空气净化器对这些颗粒的去除效率约为40％。 PM1.0，PM2.5和RESP的去除效率与房间容量有显着相关，但与居住区，季节，建筑物的年龄，公寓的楼层或周围的天气无关。我们的结果表明，便携式空气净化器可以有效改善家庭空气质量，但不足以确保污染区域内所有真实住宅中的空气质量均符合WHO准则。 （C）2019 Elsevier B.V.保留所有权利。

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  • 来源
    《Energy and Buildings》 |2019年第11期|109464.1-109464.10|共10页
  • 作者

  • 作者单位

    Chongqing Univ Joint Int Res Lab Green Bldg & Built Environm Minist Educ Chongqing 400045 Peoples R China|Chongqing Univ Natl Ctr Int Res Low Carbon & Green Bldg Minist Sci & Technol Chongqing Peoples R China;

    Chongqing Univ Joint Int Res Lab Green Bldg & Built Environm Minist Educ Chongqing 400045 Peoples R China|Univ Reading Sch Built Environm Reading Berks England;

    Rutgers State Univ Sch Publ Hlth New Brunswick NJ USA|Rutgers State Univ Environm & Occupat Hlth Sci Inst New Brunswick NJ USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Air cleaner; Indoor air quality; Infiltration factor; Residences;

    机译：空气净化器;室内空气质量渗透因子;住所;

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