All Patriot and MZET systems provide true low air loss therapy that only blower based systems can provide. Effective heat and moisture reduction can only be achieved with true low air loss. True low air loss coupled with advanced pressure redistribution make the Patriot and MZET mattress systems the most clinically effective support surfaces available. If you would like to know more about the differences in alternating low air loss systems and true low air loss CLICK HERE.