Three Ball Spirometer

Compact, high quality break-resistant plastic, 3-ball inhaling breath measurement system
3 chambers for differing inhalation rates – from 600cc/sec to 1200 cc/ sec
Deep Breathing Exerciser for comprehensive respiratory fitness
Helps achieve optimum lung capacity and restoring disrupted breathing patterns
Colors may vary;Complete Instructions Provided

Capacity: 600CC/900CC/1200CC per sec
Components: 3 ball air chamber, EVA connection tube, PP mouthpiece.
Packages: 1pc/color box, 24pcs/ctn.