Noninvasive ventilation (NIV) is the delivery of ventilatory support without the need for an invasive artificial airway. The use of noninvasive positive-pressure ventilation (NPPV) in acute respiratory failure has been steadily increasing for intensive care unit (ICU) patients. Noninvasive ventilation can often eliminate the need for intubation or tracheostomy and preserve normal swallowing, speech, and cough mechanisms. Discomfort of the device is one of the reason for the failure of NIV (30-40% of the cases).