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Airborne infection in a fully air-conditioned hospital: II. Transfer of airborne particles between rooms resulting from the movement of air from one room to another

Published online by Cambridge University Press:  15 May 2009

N. Foord  and
O. M. Lidwell
N. Foord
Affiliation:
Central Public Health Laboratory, Colindale Avenue, London NW9 5HT
O. M. Lidwell
Affiliation:
Central Public Health Laboratory, Colindale Avenue, London NW9 5HT
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Summary

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Experiments were conducted simultaneously with gas and particle tracers to determine the relative loss of particles between source and recipient sites in the hospital ward units. The magnitude of this loss could be accounted for by the assumption of sedimentation from well-mixed air masses during the time required for movement between source and recipient sites. As a consequence of this loss the degree of isolation between patient rooms for airborne particles was between 4 and 25 times greater than that for gaseous contamination, which reflects the actual transport of air between the rooms.

The design and construction of portable spinning-disk particle generators suitable for field studies is discussed.

Type
Research Article
Information
Journal of Hygiene , Volume 75 , Issue 1 , August 1975 , pp. 31 - 44
Copyright
Copyright © Cambridge University Press 1975

References

REFERENCES

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