Disposable/replaceable and recyclable (or refillable) new lightweight aluminum LIFE® Cylinders are the easiest and most economical method of assuring a sufficient supply of emergency oxygen is available at all times. For industrial and office workplace first-aid programs, the easily portable LIFE®SoftPac is easy-to-use to give crucial lifesaving oxygen until medical help arrives. LIFE Corp.,www.LIFEcorporation.com, (800) 700-0202.