The Obbomed OB-2000 StandardAir Low Air Loss mattress by ObboMed features low air loss up to 15 LPM and automatic alternating mode that ensures the user will remain protected. It is the ideal solution for those experiencing stage 1- 4 pressure ulcers. Bed sores and skin ulcers are common issues for individuals who are overweight or suffer from mobility issues. The risk of these problems can only go from bad to worse if they are not prevented or treated in time. With an alternating low air loss mattress there is consistent movement beneath the surface of the mattress cover ensuring that the user will experience less pressure on their skin as they sleep. This StandardAir Mattress by ObboMed has all the features you would expect from a quality LAL mattress including 24-hour power outage protection which ensure that the bottom layer of air cells remain inflated as long as the air hose stays connected to the beds main Control Unit. It also features convenient audio and visual warning signals that let you know if the air pressure is low or if there has been an issue with the operation of the system. This LAL mattress by ObboMed is an exceptional item for anyone who is confined to a bed or has issues with mobility. It is a great option for those who are overweight or have a history of skin ulcers and bedsores.