Simple, lightweight, robust and affordable, the EPV200 with Assist-Control is a portable mechanical ventilator designed to provide effective ventilation for intubated or non-intubated patients, maximizing medical surge response 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 pre-set visual and audible safety alarms. The Assist-Control function triggers at less than -2 cm H2O to accommodate spontaneous breathing. The weather-resistant EPV200 will run for up to 48 hours on two D cell batteries, and is ideal for stockpiling or everyday use.