Mustache Oxymizer Oxygen Conserving Device, Pneumatic and Disposable. The Oxymizer® is the simplest conserving device available today, operating without electronics, batteries, switches or flow controls. Learn how this disposable product can help you save time and money, meet the clinical needs of your patients, and ensure continued customer satisfaction. Delivers up to a 4:1 savings ratio. Allows you to obtain the equivalent of 7.5 liters from a 5-liter concentrator. Eliminates the need to deliver and service two concentrators for your high-flow patients. Features a built-in humidification effect. Offers you an alternative to continuous flow delivery for hard-to-saturate patients. Packaging: 24/Case.