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