The intolerance to the nasal-face mask, used for NIV (Noninvasive Ventilation), modality of respiratory assistance that blows positive pressure to airways, is common and may be a major limitation to its use, even though it is still widely used in different settings of care for patients with respiratory failure. BCV (Biphasic Cuirass Ventilation) is a noninvasive ventilation technique based on Negative Pressure Ventilation (NPV), that does not have the harmful side effects of nasal-face mask and/or PPV (Positive Pressure Ventilation). BCV supports work of breathing in both the inhalation and exhalation phases in a physiologically natural way, offering a viable alternative to PPV techniques by avoiding most side effects. The benefits are safe lung recruitment, gas exchange improvement and lung volume increase. This technique allows implementing some additional functions, such as HFCWO (High Frequency Chest Wall Oscillation) and options for drive cough and expectoration of airway’s secretions. Besides, one of the most appreciated benefits is that BCV allows patients to talk, to eat, and to drink while their respiratory activity is fully supported, without depriving patients of family care.