APM 420plus Or APM 420 alternating pressure system is used for the treatment of pressure ulcers up to stage IV (according to EPUAP). This system has been designed especially for geriatric care application. The use of 15 cm cells in combination with a mattress base results in an overall mattress height of only 17.5 cm. Consequently this system is in compliance with statutory minimum distances between bed side rails and mattress surface. bi-elastic, breathable PU cover, non-bending connecting tubes , connection coupling with transportation safety lock, external CPR valve sensor operated pressure management, between cycles switch off, automatic key lock, alternating pressure, static and care mode, 3 time cycles with 5/10/15 minute selection holds up to 200 kg patient weight Specifications APM 420plus Item no.: 991600X Control unit Measurements: approx. 390 x 220 x 121 mm Weight: approx. 6 kg 1 membrane compressor, digital control with pressure sensor, alternating pressure, static mode, care mode, 3 time cycles (5/10/15 min.) automatic lock pad, low pressure alarm, power failure alarm Mattress Measurements inflated incl. base mattress: approx. 200 x 90 x 17.5 cm, Weight: approx. 9.5 kg 18 cells - 6inch hight, 3 head cells static, non-bending connecting tubes (incl. transportation safety lock), CPR emergency ventilation Materials Cells: nylon with polyurethane coating Cover: bi-elastic cover with polyurethane/polyester coating, breathable, slip-retardant Base: nylon with integrated pocket for 2 cm base mattress Max. patient weight: 200 kg Pressure ulcer grade: I-IV