With App and Low Air Loss Now comes with "Quick Fill" valve! For use with 14427 electric pump (sold separately) For use in the prevention and treatment of decubitis ulcers. High volume pump produces 8 LPM. Pump has LED indicators to identify normal/low pressure levels. Easy to replace individual bladders. Three pillow top head bladders increase patient comfort. Mattress has 17 air bladders, 9 with laser cut low air loss function to increase patient comfort: helps keep the patient cool and speeds recovery. Spring lined air tubes prevent kinks and disruption in air pressure. 5" cells are constructed with Nylon/50% TPU material that is firm and heavy weight. CPR valves provide fast (20 second) release of air from the mattress. The Nylon/TPU cover material is heavy weight, water resistant, vapor permeable and machine washable to provide protection and comfort. The cover attaches to the mattress with snaps.