The RespirAct^® RA-MR™ has not been evaluated by the FDA and is distributed by Thornhill Medical to collaborators for use in IRB approved basic physiological research studies. The RespirAct^® RA-MR™ system is not intended to be used in the diagnosis or treatment of disease and is not intended to be used in studies that evaluate its safety or efficacy. More details can be found on the RespirAct^® RA-MR™ Forum.