CE/ISO approved.

1.Single-use filters for effective filtration of bacteria,  viruses and expectorated matter.

2.Suitable for inspiratory and expiratory spirometry testing.

3. Protects the subject against cross infection.

4. Protects the spirometer against cross contamination.

5.Very low expiratory flow impedance.

6.Comfortable mouthpiece.

7. Other type and specifications are available.