The APEX DOMUS 2 Air Mattress Overlay is a valuable overlay system designed for prevention and treatment of patients at low to medium risk of pressure ulcers. By having a series of individual cells inflate and deflate alternatively over a ten minute cycle, the pressure is periodically redistributed by inflating and deflating cells in order to mimic natural sleep movement patterns and avoid long term pressurization of tissue. DOMUS is a series of therapeutic support surfaces designed for a wide range of conditions from prevention to serious pressure ulcer. With evidence-based development, each model in DOMUS series is verified by Dynamic Pressure Mapping Test to trace real-time internal pressure between the mattress and body to ensure the effectiveness of pressure redistribution to offload the pressure occurring in the deep tissue.Features/BenefitsEasy to use adjustment settings, Easy to clean zip cover to reduce fluid ingress, Ventilated low-air-loss for patient comfort and Heavy duty endurance fabric base sheet.PumpDimension23.7 x 11.2 x 9.5 cmWeight1.4 kgCase MaterialFlame retardant ABSSupply VoltageAC 230V, 50 / 60 Hz ; 120V, 60HzOperating Cycle9.6 min ( 230V ) ; 8 min ( 120V )Mattress 4” Overlay MattressDimension196 x 80 x 10.2 cmAlternating1 - in - 2Cell Height18 x 4" cellsWeight3.8 kgCover MaterialNylon / PUCell MaterialPVCMaximum Patient Weight140 kg