The Phoenix 5L Oxygen Concentrator is a stationary oxygen therapy device that delivers up to 5 liters per minute (LPM) of concentrated oxygen. It maintains an oxygen concentration of 93% ± 3% across the flow range of 0.5–5.0 LPM. Phoenix 5L operates at a rated power of 328 W, with a noise level below 49.5 dBA at 3 LPM, making it relatively quiet for home or clinical use. The concentrator weighs 35 lb and measures 20 × 13.7 × 11 inches. Key safety and performance features include an internal fire break valve, a patented air separation control system, and multiple alarms (power failure, start-up failure, low/high pressure, low purity, high temperature, low flow, and power loss). The design places the air intake high on the side and exhaust at the bottom to minimize recirculation of purged gas. Serviceability is supported by easy access to internal components with only five screws, and the device can be operated without its outer shroud during troubleshooting.