HFO-high frequency ventilation in neonates part 1 

Would love to know your take on japanese HummingVue Ventilator which uses piston technology

At 22-23 min , at any given freq ie ratio of 1:2 will deliver lower TV and MAP than ie of 1:1 This explains better oxygenation with ie 1:1 , but how you can get better co2 washout with higer ie ratio of 1:2 or 1:3 even though it generates less TV...