QUESTION: Is this system similar to the KCI Tricell First Step? ANSWER: Similar but not the same. The low air loss mattress is for preventing and healing early stage bedsores at much lower cost for home care purposes. For more discussions, options and details about the product, or to order the product, please click here This low pressure mattress & pump system massages the epidermis while continuously changing contact points with the skin's surface every 4-5 minutes to maximize therapeutic effect. Shipping is free. Product of America Bantex. Waterproof top with Nylon and PU material for easy cleaning and ventilation. Removable non-shearing quilted waterproof top cover encapsulates the entire mattress. CPR valve for quick emergency air release. Safety alert light for low pressure and air loss. Quick release connector, adjustable weight adjusting knob. Replacement air cells available, easy to install. Illuminated on/off switch (same as 910). Pressure range: 30mmHg - 50mmHg with low pressure light. 20 Nylon and TPU air cells for pressure relaxing. Nylon PU top cover. Massages the epidermis while continuously changing contact points with the skin's surface every four or five minutes. Ultra low pressure help blood flow, tissue oxygenation, nutrient, and waste exchange. 8" air cell depth with inflated dimension: 80" x 36" x 8". Therapy Pump Power: 115V/60Hz or 230V/50Hz Pressure Range: 30 - 60 mmhg Air Output: 8 liters (115V) Cycle Time: 8 min (60 Hz) / 10 min (50 Hz) Power Cord: 10 feet Size: 10" x 5-1/8" x 3-7/8"   Low Air Loss Mattress Size: 80" x 36"inflated Air Cell Depth: 8"