Intermittent positive pressure breathing (IPPB) is a technique used to provide
short-term or intermittent mechanical ventilation for the purpose of augmenting lung
expansion, delivering aerosol medication, or assisting ventilation. A caveat, however, is
that IPPB is not the therapy of first choice for delivering aerosol or a method of lung
hyperinflation to be used in spontaneously breathing patients when other less expensive
therapies can reliably meet the clinical objectives prescribed for the patient.