Lif-O-Gen Disposable Portable Emergency Oxygen Kit with 2 disposable 15-minute tanks. Use for emergencies, stabilizing a heart attack victim. The Lif-O-Gen disposable oxygen kit provides the same immediate access to life saving oxygen, but features disposable cylinders that eliminate the need for refilling tanks. Please note: We do not ship this product by air so that means we will only sell in the 48 state region.