1.Low resistance for accurate pulmonary function testing.
2.Low effective dead space of 65ml as required for lung volume and DLCO testing
3.Static superfine polypropylene fibre with is hydrophobe, not good for the growing of fungus, bacterial, virus, and expectorated matter..
5.Other type and specifications are available
Single use filters,Suitable for inspiratory and expiratory spirometry testing. for effective filtration of bacteria, viruses and expectorated matter.Protects the spirometer against cross contamination.