Pneumonic device
Encyclopedia
A pneumonic device is any equipment designed for use with or relating to the lungs. The iron lung
Iron lung
A negative pressure ventilator is a form of medical ventilator that enables a person to breathe when normal muscle control has been lost or the work of breathing exceeds the person's ability....

 and medical ventilator
Medical ventilator
A medical ventilator can be defined as any machine designed to mechanically move breatheable air into and out of the lungs, to provide the mechanism of breathing for a patient who is physically unable to breathe, or breathing insufficiently....

 may be considered pneumonic devices. The term may also refer to any device used in the field of respiratory therapy
Respiratory therapy
Respiratory therapy is a healthcare profession in which specialists work with patients suffering from either acute or chronic respiratory problems. These specialists are termed Respiratory Therapists in most places internationally but may also be referred to as Respiratory Scientists or...

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