... . Factory price3. CE, FDA, ISO certificate for world market4. Many types sale1. Display mode ... SIMV frequency 1 ~ 20 times / min Absorption ratio of 2:1 ~ 1:8 Call Inspiratory ... ventilation, IPPV frequency, SIMV frequency, total respiratory rate, ratio, peak airway pressure, pressure - time waveform, flow ... ± 1Hz UPS power supply, battery Multi-function Medical Respirator for both infant and adults