BVF Bacterial / Viral FilterSuitable for inspiratory and expiratory spirometry testingProtects the subject against cross infectionLow effective dead space of 65ml as required for lung volume and DLCO...
BVF Bacterial / Viral FilterSuitable for inspiratory and expiratory spirometry testingProtects the subject against cross infectionLow effective dead space of 65ml as required for lung volume and DLCO...