... technology,uses ABS,up-down circle absorber,Ohmeda flow monitoring system, accurate and reliable. Main Features:Anesthesia ventilator:1) ... 50-1,200ml, manually monitor tidal volume and respiratory rate b) Ohmeda flow monitoring systemc) Respiratory rate: 6-40bpmd) ... range is 0.2-5% VOL4) With function of flow and temperature compensationWriting board: 1) Pull-push style2) Easy for operationOxygen ...