Its spirometers and other kindred agencies leave nothing to be desired.
"The Atlantic Monthly, Vol. 10, No. 58, August, 1862" by Various
It will be found by occasional trials upon the spirometer that the breathing capacity increases with these exercises.
"The Mechanism of the Human Voice" by Emil Behnke
Olivia Bernard, 14, holds a spirometer she will use to test people for chronic obstructive pulmonary disease for her Girl Scout Gold Award project.
Medical device maker PMD Healthcare has launched what it calls the first personal spirometer to monitor lung function, the company said.
Stuart Stoloff, left, has a spirometer in his Carson City, Nev.
Stuart Stoloff, left, has a spirometer in his Carson City, Nev. A patient, Jason Taylor, blows into it.