Disposable paper mouthpieces (T-21) for T-20 and Baseline 12-1710 Spirometer. 1,000 per pack.

Disposable paper mouthpieces (T-21) for T-20 and Baseline 12-1710 Spirometer. 500 per pack.

The POWERbreathe® K-Series uses electronic variable threshold resistance training to provide a tapered load that will match the contraction curve of your own breathing muscles throughout your entire breath. This enables you to complete a full breath and muscular contraction...