TY - GEN
T1 - Transmission characteristics of coughed air using cough generator with simulated oral airway
AU - Okajima, Ayako
AU - Tsutsumi, Hitomi
AU - Tanabe, Shin Ichi
AU - Isahaya, Toshiki
AU - Ito, Takashi
AU - Morimoto, Shoichi
AU - Hori, Satoshi
AU - Ariga, Takao
PY - 2012/12/1
Y1 - 2012/12/1
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
AN - SCOPUS:84883315332
SN - 9781627480758
T3 - 10th International Conference on Healthy Buildings 2012
SP - 2503
EP - 2508
BT - 10th International Conference on Healthy Buildings 2012
T2 - 10th International Conference on Healthy Buildings 2012
Y2 - 8 July 2012 through 12 July 2012
ER -