Figure 1 From: Noninvasive positive pressure ventilation as treatment for acute respiratory failure in critically ill patients Patient undergoing noninvasive positive pressure ventilation. Theface mask (FM), with its soft inflatable cushion (IC), is connected to themechanical ventilator (not shown) through a catheter mount (CM), with aheat-moisture exchanger (HME) included in the respiratory circuit. The facemask is secured with elastic straps (ES).Back to article page