Inspired by a friendly wager with a colleague while at a scientific conference, Horry Jones, M.D, Ph.D., successfully developed the “Metabolimeter”, the first waterless Basal Metabolism Test instrument.

This significant development led to the establishment the Jones Metabolism Instrument Company in Chicago, Illinois and ultimately the widespread availability of metabolic testing.


Recognizing the need for improvement in current spirometer design to achieve widespread access to patient testing, William C. Jones followed in his father’s footsteps, developing the “Pulmonor”, the first waterless spirometer, marking the beginning of the Jones Medical Instrument Company.

This advancement helped lead to the acceptance, standardization, and prevalence of spirometry testing today.