Important quality control
* 100% testing 24 hours before shipment.
* Medical class taiwan TPU, more soft and good for skin.
* Bottom cells no alternating,always keep air inside
* AB or ABC alternating available
* Ventilate cells
* Automatic pressure control according patient weight
* Lock function
* Static and sitting function( Sitting back alternating after 30 mins）
* When pressure not up to 15mmhg, low pressure show red light
* Seating pressure is 100mmhg, static pressure is 80mmhg