Photo is from a sales brochure courtesy of James Sullivan, BA, RPFT, Supervisor, Pulmonary Laboratories, Memorial Sloan Kettering Cancer Center.

“The most perfect spirometers for practitioners. Two models are different in the test items covered. Either model displays the respiratory waveforms and test results on the screen on an LCD (liquid crystal display). Records can be printed on ordinary paper by a dot impact printer. Being small and light, it can be put in a special case for carrying it with you everywhere.”