Breathing Muscle Trainer，Natural Breathing Exerciser For Breathing Therapy，Strengthens The Lungs And Makes Breathing Easier

OverviewFeatures:
Independent inhalation and exhalation knob controls: The respiratory muscle trainer operates with independent inhalation and exhalation settings. The ultimate lung trainer that supports respiratory health by promoting abdominal breathing

Specification:
Product Name: Lung Breathing Trainer
Material: ABS+TPR
color: blue
Package includes:
1*breathing trainer

Precautions:
To avoid cross-contamination, the respiratory trainer should only be used by one person.