FEV1 Descriptive Statistics Between the Control and Test Spirometers

Spirometer	FEV1 mean (SD)	Covariance	Min	Max	< 3 Acceptable Trials
MGC	3.07 (0.09) L	2.9%	2.74 L	3.30 L	0
Aluna	2.74 (0.14) L	4.9%	2.42 L	3.03 L	18
SmartOne	2.79 (0.10) L	3.6%	2.52 L	3.03 L	0