The EPV100 is a simple, lightweight, robust and affordable portable mechanical ventilator designed to provide critical ventilation support during the initial stages of a mass casualty event. This gas powered, electronically controlled vent is extremely easy to use, and is equipped with independent inspiratory time, tidal volume, and BPM controls. It also features a built in digital manometer and a full array of visual and audible safety alarms. The weather resistant EPV100 will run for up to 48 hours on 2 D cell batteries, making it ideal for stockpiling or everyday use.