The Oxymizer conserving cannula features a reservoir that fills with 18ml of expired air at the initial phase of exhalation, which is then enriched or replaced with fresh oxygen during the remainder of expiration, and a diaphragm that collapses immediately at the beginning of inhalation, delivering a bolus of highly oxygen-enriched air to the deepest portion of the lungs. The Oxymizer also has soft nasal prongs that offer maximum comfort and place less pressure on the nasal septum.
The Oxymizer offers a huge improvement in respiratory efficiency compared to a standard nasal cannula or mask. For example, using anOxymizer with a 0.5 liter/minute flow rate gets as much oxygen to your lungs as using a standard cannula with a 2.0 liter/minute rate -- a four-fold improvement in the endurance of your E-Ox tank!
Much more comfortable than a mask, the Oxymizer permits the wearer to speak, eat and drink normally. It offers a huge improvement in respiratory efficiency compared to a standard nasal cannula. Highly recommended -- it's what we use ourselves!
For more information, be sure to read Dr. Brent Blue's in-depth article about emergency oxygen systems. (pdf)