Total dynamic dead space (VD/VT) in bilevel versus pressure-support and pressure-assist noninvasive ventilation (NIV) face masks. └: Respironics BIPAP.

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Total dynamic dead space (VD/VT) in bilevel versus pressure-support and pressure-assist noninvasive ventilation (NIV) face masks. └: Respironics BIPAP S/T; □: Breas 401; : NIPPY 1 Dynamic total dead space (VD/VT). Total dynamic dead space (VD/VT) in bilevel versus pressure-support and pressure-assist noninvasive ventilation (NIV) face masks. └: Respironics BIPAP S/T; □: Breas 401; : NIPPY 1 Dynamic total dead space (VD/VT). Refer to table 1 for abbreviations. E. Saatci et al. Eur Respir J 2004;23:129-135 ©2004 by European Respiratory Society