The oxymizer facilitates the delivery of continuous high-flow oxygen therapy. The oxymizer can be used with oxygen tanks and home oxygen concentator to increase the proportion of oxygen flow during early inspiration while achieving saturation levels and providing a reduction in total oxygen delivered.This device is beneficial to patients who either have high liter flow settings or cannot currently tolerate standard conserving devices. The Oxymizer is available in a mustache style or concealable pendant style. The Oxymizer provides a comfortable alternative to an oxygen mask allowing patients to eat, drink, and talk comfortably.