... could be applied to closed anesthesia, semi-closed anesthesia, and semi-open anesthesia, and be applicable to Adult / Pediatric inhalation anesthesia, oxygen ... valve pressure limit: 6 Kpa Good air tightness, high reliability, and minor respiration impedanceWith Manual/ Ventilation switchPhysical specification Whole machine: Length ... °C~55°C, Economic Anesthesia Machine Aries 2600 with FDA and CE marked