“…25 Although new highly compressed gas-driven ICU ventilators have embedded NIV algorithms to manage leaks and to promote improved patientventilator synchrony 23,26 by adjusting triggering, flow, and cycling mechanisms, turbine-driven ventilators in their intentional-leak circuit configuration may outperform compressed-driven ventilators in ICUs. 21,23,[27][28][29][30] All ventilators, except for portable transport ventilators that may be driven pneumatically, require electricity (alternating current external power or a direct current internal battery). The gas source can be (1) external high-pressure gas (centralized gas system or tanks), (2) an internal compressor, (3) a turbine or piston; (4) a combination of (1) and (3) or (1) and (2).…”