Positive tension ventilation any of various forms of mechanical ventilation during which gas is shipped to the airways and lungs below positive force, making optimistic airway pressure all through inspiration; it may be done by means of either an endotracheal tube or simply a nasal mask. See also ventilator. Exhaust https://edwinzshvj.bloggerbags.com/43015786/the-ultimate-guide-to-ventilation-installation