SPIROMETER TYPE:PRO function measurement instrument

The portable pulmonary function measurement instrument can be used to measure:

                      Vital capacity  (VC)

                      Forced vital capacity  (FVC)
                      Maximum Ventilator Volume  (MVV). 

Measurement algorithm refers to the ITS ERS standards of the American Thoracic Society (ATS)

Measurement of breathing time: 

                    VC  time 50 seconds 

                    FVC  measuring time 25 seconds 

                    MVV  time 12 seconds