... of aerospace technology,uses ABS,up-down circle absorber,Ohmeda flow monitoring system, accurate and reliable. Main Features:Anesthesia ventilator ... 200ml, manually monitor tidal volume and respiratory rate b) Ohmeda flow monitoring systemc) Respiratory rate: 6-40bpmd) I/E ratio ... Silence time for alarm: 120sAnesthesia machine:Flow meter:1) O2/N2O four-tube flow meter2) Low flow rate: 0.1-2L/min3) High ...