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October 2022


Journal/Book: Journal of Hygiene Vol. 50 No.1 (1951). 1951;

Abstract: From the Microbiological Research Department Porton Wilts (Ministry of Supply) Summary A vertical closed circuit wind tunnel in described in which a spinning top sprayer is used as a source of homogeneous particles of pathogenic organisms. The dry particle size may be set at any figure between 1 and 20 and the cloud concentration can be varied over wide limits. Provision is made for humidity control. Animals may be exposed to the cloud and samples taken from it. The apparatus can be sterilized with flowing steam and formalin. An appendix giving details of the operational technique is available on request. The authors are much indebted to Dr. D. W. Henderson upon whose experience in this field of research they have so freely drawn for his encouragement and advice throughout. This paper is published by permission of the Chief Scientist Ministry of Supply.

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