Studies show that use of manual ventilation causes variability in respiratory parameters and blood gas values due to inconsistent ventilation. A study in 2003 found that portable ventila-tor provided more consistent ventilation and patients were less likely to have a disparity in their blood gases, oxygenation and ventilation.. However, conventional ventilators are bulky, heavy, expensive and few and far between in the hospital and, in particular, the pre-hospital setting. The Pneupac VR1 ventilator is simple to use, small, portable and durable. It is easy to clean, low cost, light weight and magnetic resonance imaging (MRI) compatible.