- Design: Works independent of orientation - allowing use in any position - patient is free to sit, stand or recline
- Design: Patient may inhale through device - allowing inhalation and exhalation without removing from mouth
- Green-DH ≥ 15 lpm for 3 seconds
- Inspiratory Valve
- Scale : 60-800 L/min
- Scale Increment : 10 L/min – 10 %
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