The SE400AT-2 is a positive pressure demand powered air purifying respirator specially designed for first responders and other emergency personnel. In combination with the SE-SHIELD pressurized suit, tested against chemical and biological warfare agents, the SE400AT-2 is the ideal respirator for all warm-zone activities. The respirator, from The S.E.A. Group, offers longer operations than the SCBA. The SE400AT-2 keeps working for hours, providing clean air at a rate of more than 400 l/min peak inhalation air flow, which means positive pressure and effortless breathing, even during hard work. The SE400-AT2 is used by rescue squads, first responders, ambulance teams, paramedics and other emergency personnel around the world.