Anaesthesia General e7005d54 In magil circuit airflow is – A 1/2 of minute volume B equal to M.V. C 2 x m.v. D 3 x m.v. High-Yield Explanation "For Mapleson Type A (Magill) circuit fresh gas flow should be equal to minute volume (5 L/min) to prevent rebreathing when patient is spontaneously breathing".