Due to Abbott powdered formula recall, PHS is currently limiting formula deliveries to contain one week’s supply as opposed to a full month. Limits on orders may change frequently as our access to products changes. This is to ensure all patients have access to formula throughout the recall.
The heating spiral contains heater wire to warm the breathing gas inside the tube.
The insulating spiral uses a bubble of warmed air around the breathing gas to shield it from the outside environment.
Like a double-paned window, the inside and outside surfaces of the tube are physically separated, to reduce cooling and helps maximize the level of humidity remaining in the gas all the way to the patient.