The Versaflo3® has been designed to combine high pressure care needs and comfort. Using a three layer technology configured to create a comfortable sleep support surface while providing high pressure relief. ActiveX™ Comfort Layer: top layer, primary comfort layer to increase comfort disperse pressure and retain body heat. Adjustable Air Cylinders: mattress core, alternate air pressure to adjust surface pressure points. XP Support: mattress foundation bottom layer, prevents bottom out and reduces over immersion while enabling the mattress to profile. VersaFlo3® comes with repair kit, can be repaired up to five times before requiring replacement.This rating is based on our average peak pressure of <24.5mmHg. Icare risk category ratings are based on average peak pressure, Therapist recommendation, case studies, industry comparison and the Waterlow scale. The best way to assess a client on a pressure reducing surface is to monitor pressure points with visual checks over a period of 5 days.