The CHAD® Evolution™ Motion Auto-Adjusting Electronic Oxygen Conserver matches oxygen dose to patient activity level, saturating patients more efficiently and conserving oxygen more effectively than other conservers on the market. The Evolution Motion has a programmable rest and active setting. The Evolution Motion senses a patient’s activity and turns oxygen flow up or down, as needed, within seconds based on the patient’s level of activity. The Evolution Motion delivers a uniform oxygen pulse which can range from 14 breaths per minute to 40, supporting a wide range of needs and activity levels. The Evolution Motion Electronic Oxygen Conserver senses a breath and delivers oxygen only in the first half of the inspiratory cycle, resulting in no wasted oxygen while delivering an effective oxygen dose. In addition, the Evolution Motion has a 5:1 savings ratio and liter flow settings between 1 and 6 LPM providing a high level of conservation while offering versatile liter flow options.