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Cushioning pads filled with air that are designed to reduce pressure on specific areas of the body by periodical inflation and deflation. These pads consist of a sealed plastic (e.g., vinyl) enclosure filled with air; the enclosure includes a valve that allows the pads to inflate/deflate periodically using an external automated pump. Dedicated alternating pressure relief pads may be conformed in a variety of shapes and sizes. They are mainly used in the care of patients at risk for or who already have compromised skin surfaces (e.g., burn, decubitus ulcers). Alternating air pads are frequently used on top of chairs, wheelchairs, and beds to prevent or alleviate pressure sores.
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