Transmission characteristics of coughed air using cough generator with simulated oral airway

Ayako Okajima, Hitomi Tsutsumi, Shinichi Tanabe, Toshiki Isahaya, Takashi Ito, Shoichi Morimoto, Satoshi Hori, Takao Ariga

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    This study identifies the transmission characteristics of a coughed air using a developed cough generator containing a silicon head device with an oral airway. Baby powder with a diameter range of 0.3-170 μm was emitted horizontally. The volume of the coughed air was set at 0.9L, with an air pressure of 0.4 MPa, ejection time of 0.35 s, and opening space of 4 cm 2. A particle sensor counted the number of >0.5μm particles under masked and unmasked conditions. A high concentration of particles was measured at a distance of 1 m from an ejection point without a mask, while a low concentration was observed at a distance greater than 1 m from the ejection point. Particles reached the point that was 2 m from that with a mask, although at all points, the particle number with a mask was approximately half that without a mask.

    Original languageEnglish
    Title of host publication10th International Conference on Healthy Buildings 2012
    Pages2503-2508
    Number of pages6
    Volume3
    Publication statusPublished - 2012
    Event10th International Conference on Healthy Buildings 2012 - Brisbane, QLD
    Duration: 2012 Jul 82012 Jul 12

    Other

    Other10th International Conference on Healthy Buildings 2012
    CityBrisbane, QLD
    Period12/7/812/7/12

    Fingerprint

    Masks
    Air
    Powders
    Silicon
    Sensors

    Keywords

    • Cough simulation machine
    • Infection risk
    • Measurement
    • Oral cavity
    • Tracer particles

    ASJC Scopus subject areas

    • Civil and Structural Engineering

    Cite this

    Okajima, A., Tsutsumi, H., Tanabe, S., Isahaya, T., Ito, T., Morimoto, S., ... Ariga, T. (2012). Transmission characteristics of coughed air using cough generator with simulated oral airway. In 10th International Conference on Healthy Buildings 2012 (Vol. 3, pp. 2503-2508)

    Transmission characteristics of coughed air using cough generator with simulated oral airway. / Okajima, Ayako; Tsutsumi, Hitomi; Tanabe, Shinichi; Isahaya, Toshiki; Ito, Takashi; Morimoto, Shoichi; Hori, Satoshi; Ariga, Takao.

    10th International Conference on Healthy Buildings 2012. Vol. 3 2012. p. 2503-2508.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Okajima, A, Tsutsumi, H, Tanabe, S, Isahaya, T, Ito, T, Morimoto, S, Hori, S & Ariga, T 2012, Transmission characteristics of coughed air using cough generator with simulated oral airway. in 10th International Conference on Healthy Buildings 2012. vol. 3, pp. 2503-2508, 10th International Conference on Healthy Buildings 2012, Brisbane, QLD, 12/7/8.
    Okajima A, Tsutsumi H, Tanabe S, Isahaya T, Ito T, Morimoto S et al. Transmission characteristics of coughed air using cough generator with simulated oral airway. In 10th International Conference on Healthy Buildings 2012. Vol. 3. 2012. p. 2503-2508
    Okajima, Ayako ; Tsutsumi, Hitomi ; Tanabe, Shinichi ; Isahaya, Toshiki ; Ito, Takashi ; Morimoto, Shoichi ; Hori, Satoshi ; Ariga, Takao. / Transmission characteristics of coughed air using cough generator with simulated oral airway. 10th International Conference on Healthy Buildings 2012. Vol. 3 2012. pp. 2503-2508
    @inproceedings{8605016dffc84737a73621d18f53601f,
    title = "Transmission characteristics of coughed air using cough generator with simulated oral airway",
    abstract = "This study identifies the transmission characteristics of a coughed air using a developed cough generator containing a silicon head device with an oral airway. Baby powder with a diameter range of 0.3-170 μm was emitted horizontally. The volume of the coughed air was set at 0.9L, with an air pressure of 0.4 MPa, ejection time of 0.35 s, and opening space of 4 cm 2. A particle sensor counted the number of >0.5μm particles under masked and unmasked conditions. A high concentration of particles was measured at a distance of 1 m from an ejection point without a mask, while a low concentration was observed at a distance greater than 1 m from the ejection point. Particles reached the point that was 2 m from that with a mask, although at all points, the particle number with a mask was approximately half that without a mask.",
    keywords = "Cough simulation machine, Infection risk, Measurement, Oral cavity, Tracer particles",
    author = "Ayako Okajima and Hitomi Tsutsumi and Shinichi Tanabe and Toshiki Isahaya and Takashi Ito and Shoichi Morimoto and Satoshi Hori and Takao Ariga",
    year = "2012",
    language = "English",
    isbn = "9781627480758",
    volume = "3",
    pages = "2503--2508",
    booktitle = "10th International Conference on Healthy Buildings 2012",

    }

    TY - GEN

    T1 - Transmission characteristics of coughed air using cough generator with simulated oral airway

    AU - Okajima, Ayako

    AU - Tsutsumi, Hitomi

    AU - Tanabe, Shinichi

    AU - Isahaya, Toshiki

    AU - Ito, Takashi

    AU - Morimoto, Shoichi

    AU - Hori, Satoshi

    AU - Ariga, Takao

    PY - 2012

    Y1 - 2012

    N2 - This study identifies the transmission characteristics of a coughed air using a developed cough generator containing a silicon head device with an oral airway. Baby powder with a diameter range of 0.3-170 μm was emitted horizontally. The volume of the coughed air was set at 0.9L, with an air pressure of 0.4 MPa, ejection time of 0.35 s, and opening space of 4 cm 2. A particle sensor counted the number of >0.5μm particles under masked and unmasked conditions. A high concentration of particles was measured at a distance of 1 m from an ejection point without a mask, while a low concentration was observed at a distance greater than 1 m from the ejection point. Particles reached the point that was 2 m from that with a mask, although at all points, the particle number with a mask was approximately half that without a mask.

    AB - This study identifies the transmission characteristics of a coughed air using a developed cough generator containing a silicon head device with an oral airway. Baby powder with a diameter range of 0.3-170 μm was emitted horizontally. The volume of the coughed air was set at 0.9L, with an air pressure of 0.4 MPa, ejection time of 0.35 s, and opening space of 4 cm 2. A particle sensor counted the number of >0.5μm particles under masked and unmasked conditions. A high concentration of particles was measured at a distance of 1 m from an ejection point without a mask, while a low concentration was observed at a distance greater than 1 m from the ejection point. Particles reached the point that was 2 m from that with a mask, although at all points, the particle number with a mask was approximately half that without a mask.

    KW - Cough simulation machine

    KW - Infection risk

    KW - Measurement

    KW - Oral cavity

    KW - Tracer particles

    UR - http://www.scopus.com/inward/record.url?scp=84883315332&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84883315332&partnerID=8YFLogxK

    M3 - Conference contribution

    SN - 9781627480758

    VL - 3

    SP - 2503

    EP - 2508

    BT - 10th International Conference on Healthy Buildings 2012

    ER -