QDC-500 is recommended for the prevention and treatment ofpressure sore stage l and ll in long-term and domiciliary therapies.The 24 7.5cm-high cells in Nylon+PVC are comfortable.Low airloss holes provide good ventilation and keep the users dry fromunwanted humidity building-up between the body and the mattress.The pump operates at very low sound level.The pumpcan be hung to the end of the bed by means of two hooks.