The MIR Disposable Plastic Mouthpiece (#910305 / 100 per Bag) is designed for use with MIR spirometers, such as the Spirolab (#911080), Spirodoc + Oxi (#910610), Spirobank II, Minispir (#911006), and Spirotel (#9107100).
Warranty: 2 Years.
The blue mouthpiece is made for adult use.
