- Single use filters for effective filtration of bacteria, viruses and expectorated matter
- Suitable for inspiratory and expiratory spirometry testing
- Protects the subject against cross-infection
- Protects the spirometer against cross-contamination
- 99.99% cross-contamination efficiency
- Very low expiratory flow impedance
- Low effective dead space of 65ml as required for lung volume and DLCO testing
- Comfortable mouthpiece
- Efficient at high flow rates
- Attractively priced
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