Type:Anesthesia Equipments & Accessories Instrument classification:Class III Certificate:CE ISO Warranty:12 Months Ventilation method:Closed, half-closed, half-open Option1:TH-1 Ventilator Option2:TH-1A Ventilator Tidal volume( Manual Mode):20~1500ml Gas pressure:0.25 ~ 0.65Mpa O2 Flush:25 ~ 75L min APL valve:0.5 ~ 6.0Kpa