The MCV200 is a weather-resistant ventilator specifically designed for the unpredictable circumstances of mass casualty incidents. It can be powered by battery or 110 volt electricity to deliver ambient air or oxygen via its internal dual compressors, but can also switch to completely pneumatic operation when no electricity is available. The MCV200 features independent settings for inspiratory time, tidal volume, and BPM. Like the MCV100, the MCV200 features an assist control function for spontaneous breathing, a full array of audible and visual safety alarms, and provides an optional capability of oxygen mixing.