GCE Zen-O Portable Oxygen Concentrator 2 Battery Package – Certified Pre-Owned Continuous flow capability with the flexibility of pulse dose in a robust portable oxygen system ⭐ Why Choose the GCE Zen-O? The GCE Zen-O Portable Oxygen Concentrator (Certified Pre-Owned) is one of the few portable oxygen concentrators designed to deliver both pulse dose and true continuous flow in a single unit. This makes it an excellent choice for users who require flexible oxygen therapy throughout the day. The 2 battery package allows extended mobility and longer operating time between charges, making it suitable for travel, daily activities, and backup oxygen use. Each Certified Pre-Owned unit is professionally inspected, tested, and prepared to ensure reliable performance within operational specifications. What “Certified Pre-Owned” Means Each device undergoes a professional refurbishment process that includes: Full technical inspection Performance verification Cleaning and reconditioning Oxygen concentration testing Inspection of critical internal components This allows patients to access a dependable oxygen therapy solution at a significantly reduced cost compared to a brand-new unit. �� Battery Runtime (Typical Estimates) Pulse Dose Mode Setting Approximate Runtime (per battery) 1 up to ~4 hours 2 ~3 hours 3 ~2 hours 4 ~1.5 hours 5 ~1 hour 6 ~45 minutes With two batteries included, total runtime can be extended depending on the selected setting. Continuous Flow Mode Flow Approximate Runtime (per battery) 1 LPM ~1 hour 2 LPM ~30 minutes ⚡ Approximate Charging Time Method Charging Time AC Power ~3–4 hours per battery DC Vehicle Power ~3–4 hours Technical Specifications Feature Specification Oxygen Delivery Modes Pulse dose & continuous flow Continuous Flow Up to 2 LPM Pulse Settings 1–6 Weight ~10.25 lb Noise Level ~38–42 dBA Power Supply AC 100–240V / DC vehicle Battery Type Rechargeable lithium-ion FAA Status Approved for airline travel Warranty 1 Year (USA) Condition Certified Pre-Owned �� What’s Included in the Package GCE Zen-O Certified Pre-Owned unit Two rechargeable lithium batteries AC power supply DC vehicle power cable Nasal cannula Carry bag User manual Warranty This device includes a 1-year warranty administered within the United States. The warranty covers functional defects under normal operating conditions. Why Buy from American Oxygen (Doral, FL) Same-day pickup available in Doral, Florida Fast UPS shipping across the United States U.S.-based support team Pre-purchase guidance for choosing the right oxygen equipment All devices inspected before shipping Frequently Asked Questions Does this concentrator offer continuous flow? Yes. The Zen-O provides continuous flow up to 2 liters per minute. Does it also provide pulse dose? Yes. Pulse dose settings range from 1 to 6. Is it approved for airline travel? Yes. The Zen-O is FAA approved for use on commercial flights. What does Certified Pre-Owned mean? It means the unit has been professionally inspected, tested, and refurbished to ensure proper operation. How long does the battery last? Battery duration depends on the oxygen setting used. See the runtime tables above.
