Complete Medical Supplies Bariatric Low Air Loss & APP System holds patients up to 750 lbs. It is great for use in nursing homes, hospitals and homes. This great hospital bed mattress has a high volume extra quiet pump produces 15 liters of air pressure per minute. It has 10" cells that are constructed of nylon/TPU material that is soft, lightweight and will not stretch. The mattress has 20 air bladders, 9 with laser cut low air loss function to increase patient comfort.