SpiroTech was founded by Dr. James Bradford, a former NASA materials research and Georgia Tech physics professor.  Dr. Bradford oversaw the first medical database application in the late 1970’s and early 1980’s at Emory Clinic.  The first SpiroTech spirometer design was a result of a research project on pulmonary disease from cotton fiber manufacturing.


SpiroTech S400.


SpiroTech S400.



SpiroTech S401, circa 1990’s.  Found on an Ebay listing.  A spirometer with a dedicated microprocessor that included a thermal Printer, keyboard, LCD display,  automatic clock & temperature sensing (BPTS),  RS232 compatible interface and a 3-1/2″ diskette drive.


SpiroTech S700.


SpiroTech S700 Brochure, 1999.


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The diverse, quirky and mostly forgotten history of Pulmonary Function testing