Pulmonary Function testing system consisting of dual water-seal spirometers with a central kymograph. Performed spirometry, helium dilution FRC and DLCO. The purpose of the double spirometers is unclear but they may have been used to measure oxygen consumption. From: http://db.aconit.org
Collins GS Pulmonary Function testing system. Performed spirometry, helium dilution FRC and DLCO. Used a rolling-seal volume displacement spirometer. Circa 1995. Found at: http://www.pemed.com/respirat/collinsgs02_40.jpg
Collins DSII Pulmonary Function Testing System, circa 1980.
http://www.museevirtuel-virtualmuseum.ca/Search.do?ig=on&R=IMAGES_ACPO11706&lang=en
Photograph courtesy of Barbara A. Kerns
Photograph courtesy of Barbara A. Kerns
Photograph is courtesy of Barbara A. Kerns
Photography is courtesy of Barbara A. Kerns
Photograph provided by Richard Johnston & Carl O’Donnell
