Res Med states: Patients may continue to use their S8 flow generators until they receive a replacement device. As with any electrical device, patients should make sure that it is placed on a hard clean surface and that the area around the device is clear during use. Patients should discontinue use of the device if there are any signs of electrical failure such as intermittent power, cracking sounds, sparking or charred smell. Patients should not use supplemental oxygen with an affected device; patients using supplemental oxygen should immediately contact their home healthcare provider for a replacement.

In only seven cases, less than 2/10^th of 1% of the machines in operation, has this power component caused a problem. However, because of the potential fire hazard, all machines are being recalled. Serial numbers of machines to be recalled are printed on the base of the machines. Serial numbers include the following: