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Research Article

Natural Ventilation for the Prevention of Airborne Contagion

  • A. Roderick Escombe mail,

    To whom correspondence should be addressed. E-mail: rod.escombe@imperial.ac.uk

    Affiliations: Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom, Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom, Asociación Benéfica PRISMA, Lima, Perú

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  • Clarissa C Oeser,

    Affiliation: Asociación Benéfica PRISMA, Lima, Perú

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  • Robert H Gilman,

    Affiliations: Asociación Benéfica PRISMA, Lima, Perú, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

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  • Marcos Navincopa,

    Affiliation: Hospital Nacional Dos de Mayo, Lima, Perú

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  • Eduardo Ticona,

    Affiliation: Hospital Nacional Dos de Mayo, Lima, Perú

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  • William Pan,

    Affiliation: Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

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  • Carlos Martínez,

    Affiliation: Hospital Nacional Dos de Mayo, Lima, Perú

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  • Jesus Chacaltana,

    Affiliation: Hospital Nacional Daniel Carrión, Lima, Perú

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  • Richard Rodríguez,

    Affiliation: Hospital de Apoyo Maria Auxiliadora, Lima, Perú

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  • David A. J Moore,

    Affiliations: Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom, Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom, Asociación Benéfica PRISMA, Lima, Perú

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  • Jon S Friedland,

    Affiliations: Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom, Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom

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  • Carlton A Evans

    Affiliations: Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom, Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom, Asociación Benéfica PRISMA, Lima, Perú, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

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  • Published: February 27, 2007
  • DOI: 10.1371/journal.pmed.0040068

Reader Comments (12)

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Another disadvantage of natural ventilation

Posted by hlevin on 25 Apr 2012 at 07:02 GMT

A disadvantage of natural ventilation is the difficulty in controlling direction of airflow due to the absence of negative pressure.
http://plosmedicine.org/article/info:doi/10.1371/journal.pmed.0040068#article1.body1.sec4.p6

Especially in large cities in resource poor contexts, outdoor air quality is very poor. The highest levels of ozone and of PM2.5 and PM10 are reported by the World Health Organization as being in the large cities throughout the developing world. Increasing outdoor air ventilation rates means creating an indoor air atmosphere that is as contaminated as the outdoor air and may compromise the immune response of patients already at risk.

No competing interests declared.