Over that past several decades EIT has moved from the research lab to commercially available devices that are used at the bedside. EIT has also been applied to study the effects of various devices used to provide non-invasive ventilation. EIT may prove useful to optimally adjust non-invasive ventilation settings to improve ventilation and oxygenation. One such EIT system is manufactured by Draeger Medical. It is available in Europe and Canada but is not yet FDA approved for use in the United States.