From Office Spirometry. A practical guide to the selection and use of spirometers. By PL Enright and RE Hyatt. Published by Lea and Febiger, 1987. Page 107.
Tag Archives: Ohio
Spirometer, Ohio 822, circa 1980, open back with kymograph
Spirometer back showing kymograph. Found on an Ebay Listing.
Spirometer, Ohio 822, circa 1980
A horizontal, rolling-seal, volume displacement spirometer. Found on an Ebay Listing.
Spirometer, Ohio Rolling Seal, 1973 Patent
Spirometer, Ohio 822, 1979
Ohio 822. A rolling seal spirometer. From a poorly photocopied sales brochure dated 1979 found on the Legacy Tobacco Documents website.
Spirometer, Ohio 842, circa 1980
Spirometry, 1974
Spirometry, 1970, Ohio 300
Spirometer, Ohio 840
A horizontally mounted, rolling-seal, volume displacement spirometer.
From http://www.atlasresell.com/Ohio840MedicalSpirometerwNitrogenAnalyzer