Used an un-heated Fleisch pneumotach. 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 123.
Used an un-heated Fleisch pneumotach. 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 123.