This measures the capacity of our lings to hold air. It can also record breathing functions of speech and sound production. It is an instrument used for measuring the air capacity in the lungs

SPIROMETER: "A spirometer measures our lung capacity for air."
Cite this page: N., Pam M.S., "SPIROMETER," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/spirometer/ (accessed May 13, 2021).