Plastic Mouthpiece
- Completely compatible with the leader spirometer devices—without affecting dead space and resistance through multi-stage function
- Custom-engineered structure against slipperiness and stickiness—anatomically convenient for the mouth structure of adults and children
- No extra resistance in addition to acceptable filter pad resistance
- Connection without intermediate adaptor to all leader spirometer devices
- 100 or 200 units per pack
- Latex free
- Disposable
