The Risk of Airborne Cross-Infection in a Room with Vertical Low-Velocity Ventilation

Inés Olmedo, Peter V. Nielsen, M. Ruiz de Adana, Rasmus Lund Jensen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

37 Citationer (Scopus)

Abstrakt

Downward flow ventilation systems are one of the most recommended ventilation strategies when contaminants in rooms must be removed and people must be protected from the risk of airborne cross-infection. This study is based on experimental tests carried out in a room with downward flow ventilation. Two breathing thermal manikins are placed in a room face to face. One manikin’s breathing is considered to be the contaminated source to simulate a risky situation with airborne cross-infection. The position of the manikins in relation to the diffuser and the location of diffuser in the room as well as the distance between the manikins are being changed to observe the influence of these factors on the personal exposure of the target manikin. The results show that the DWF in different situations often is unable to penetrate the microenvironment generated by the manikins. The downward ventilation system can give an unexpected high level of contaminant exposure of the target manikin, when the distance between the manikins is reduced.
OriginalsprogEngelsk
TidsskriftIndoor Air Online
Vol/bind23
Udgave nummer1
Sider (fra-til)62-73
Antal sider12
ISSN1600-0668
DOI
StatusUdgivet - 2013

Emneord

  • Airborne Cross Infection Risk
  • Vertical Ventilation
  • Downward Flow
  • Upward Flow
  • Manikins
  • Exhaled Contaminants

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