Deep Breathing Exerciser/ Spirometer

Deep Breathing Exerciser/ Spirometer Features & details Compact, high quality break-resistant plastic, 3-ball inhaling breath measurement system Solid, non-shaky Construction; Removal bottom for thorough cleaning and hygiene maintenance Deep Breathing Exerciser for comprehensive respiratory fitness - 3 chambers for differing inhalation rates from 600cc/sec to 1200 cc/ sec Helps achieve optimum lung capacity and restoring disrupted breathing patterns Complete Instructions Provided; Ball Colors may vary