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Zen-O Portable Oxygen Concentrator RS-00502-G

By GCE Group
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    Availability: In stock

  • continuous or pulse flow
  • smallest and lightest continuous flow concentrator, cart mounted weight 13.5 lbs
  • medium battery life, 4 hours
  • supports 13 different languages
  • 24/7 operation
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Item# Description Size Price

Concentrator with ONE BATTERY - SHIPS FREE!




Concentrator with TWO BATTERIES - SHIPS FREE!



Concentrator with ONE BATTERY - Each
SKU: RS-00502-G-S


Concentrator with TWO BATTERIES - Each
SKU: RS-00502-G-D



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What Comes in the Box?


Zen-O Oxygen Concentrator Standard Componets


Zen-O™ Portable Oxygen Concentrator Standard Components

  • Concentrator
  • AC Power Supply
  • DC Power Supply
  • Battery
  • Carry Bag
  • Pull Cart
  • User Manual
  • 3 Year or 15,000 Hour Concentrator Warranty
  • 1 Year Battery Warranty

Zen-O Portable Oxygen Concentrator Product Number RS-00502-G-S

Zen-O with Cart


Zen-O Portable Oxygen Concentrator offers both continuous and pulse flow oxygen for oxygen therapy patients. The Zen O offers 2 liters per minute (LPM), meeting the oxygen demands for most patients. This concentrator is designed for respiratory disorders such as chronic obstructive pulmonary disease (COPD), providing oxygen on demand for patients both at home or on the go. Its lightweight structure and small size make it easy to bring with you in its carry-bag or pull cart that comes standard with your order.

Zen-O concentrator offers greater operational efficiency than many of the competing portable oxygen concentrators on the market. Maximum outlet pressure is 20.5 psi, able to push oxygen through extended tubing. Oxygen concentration levels range between 87 to 96 percent. Noise emission for this small concentrator is at 42 decibels (ISO 3744 standard).

The AC power adapter is able to function using from 100 to 240 volts on 50 to 60 hz systems. The DC power adapter provides for use in automobiles, boats and RV’s. A 12-cell battery will power the Zen-O for 4 hours with 2 LPM of oxygen at 18 breaths per minute (BPM) while in pulse flow mode. Add an additional battery and the Zen-O will allow you to operate away from home for up to 8 hours.

The Zen-O Oxygen Concentrator is manufactured by GCE with an easy to replace sieve bed that can be exchanged using simple tools in under 5 minutes. This can save you hundreds of dollars over other brands. Zen-O™ uses advanced technology in its construction to adjust the amount of oxygen delivered according to a patient’s breath rate. When the patient needs more oxygen this concentrator automatically responds by increasing the oxygen output.

Description of Zen-O Components

Zen-O Components


Component Description

  • Portable concentrator - weighing less than 9 pounds and offering continuous or pulse oxygen flow.
  • AC power adapter - adjustable to a range of 100 to 240 volts and 50 to 60 hz.
  • DC power adapter - powers your concentrator while in a car, RV or boat.
  • Rechargeable lithium ion battery - has 12-cells, providing a 4 hour duration.
  • Carry bag - attractive and provides a protective cover, allowing you to carry as a shoulder bag or mount in the cart.
  • Cart - small, lightweight and easy to manuever through crowded areas.
  • User manual - provides instruction for setup and operation.

Compare the Product Bundles

Concentrator with One 12-Cell Battery

  • Cart Weight: 14.96 lbs. (concentrator, battery, carry case)
  • Carry Weight: 10.73 lbs. (concentrator, battery, carry case and cart)
  • Battery Duration: 4 hours (fully charged batteries at pulse flow setting 2)
  • Battery Recharge Time: 3 to 4.5 hours

Concentrator with Two 12-Cell Batteries

  • Cart Weight: 16.41 lbs. (concentrator, 2 batteries, carry case)
  • Carry Weight: 12.18 lbs. (concentrator, 2 batteries, carry case and cart)
  • Battery Duration: 8 hours (fully charged batteries at pulse flow setting 2)
  • Battery Recharge Time: 3 to 4.5 hours


Features and Benefits


Zeno Lightweight Portable Oxygen Concentrator

Top View

Zeno Features


  • Dual mode operation with up to 2 litres of oxygen in pulse or continuous oxygen flow.
  • Easy to use LCD panel.
  • Global support with locations in Latin America, China, Europe, Africa and North America with replacement parts and accessories.
  • Field replaceable sieve bed in under 5 minutes using simple tools.
  • Audible and visual alarms prompt the user of a required action, including low battery, service required, and no breath detected.
  • Durable and reliable.
  • Supports 13 different languages—English, German, French, Spanish, Swedish, Dutch, Italian, Danish, Finnish, Norwegian, Portuguese, Turkish, and Czech.


List of 13 Languages



Zeno Mounted in Cart
Continuous Flow Rates

Power Consumption Chart

Battery Duration Chart


Size and Weight

  • Width: 8.3 Inch.
  • Height: 12.3 Inch.
  • Depth: 6.6 Inch.
  • Concentrator Weight: 8.8 pounds.
  • Battery Weight: 1.45 pounds.
  • Carry Bag Weight: 0.48 pounds.
  • Cart Weight: 2.78 pounds.


  • Oxygen Output (maximum): 2 LPM Continuous Flow and 22 mL Pulse Flow at 20 BPM.
  • Oxygen Concentration Levels: 87 to 96%.
  • Maximum Outlet Pressure: 20.5 psi.
  • Maximum Operating Altitude: 9,000 feet above sea level.
  • Noise: 42 dBA at setting 2.


  • Average Power Consumption
  • Power Consumption Continuous Flow at Setting 2: 133 Watts and 140 Watts while charging.
  • Power Consumption Pulse Flow at Setting 2: 25 Watts and 70 Watts while charging.
  • Power Requirements
  • AC Input 100 to 240 VAC, 50/60 Hz.
  • AC Output: 24 VDC, 6.25 A.
  • DC Adapter Input:11.5 -16 VDC.
  • DC Output: 19 VDC, 7.9 A.
  • Battery: Lithium Ion 12 Cell.
  • Battery Duration Pulse Flow: 4 hours at setting 2.
  • Battery Duration Continuous Flow: 0.75 hours at setting 2.
  • Battery Recharge Time While In Use Pulse Flow: 3 hours.
  • Battery Recharge Time While In Use Continuous Flow: 3 to 4.5 hours.
  • Alarms: Low oxygen purity, no breath detected, low battery, service required.
  • FAA approval.

Manufacturing and Dependability

  • Product Numbers: RS-00502-G-S, RS-00502-G-D.
  • Manufacturer: GCE.
  • Brand: Zen-O.
  • Made in United Kingdom.
  • HCPCS Code: E1390.
  • Concentrator Warranty: 3 years or 15,000 hours.
  • Battery Warranty: 1 year.
  • Medical Grade Product - requires a physician's prescription for purchase.
Vitality Medical - A Better Place to Buy


Certified Oxygen Concentrator Specialist Seal
GCE Group Reseller
Zen O Logo


Certified Oxygen Concentrator Specialist - Any questions you might have about the GCE concentrators or any of the other concentrator can be answered by telephone call to one of our Certified Oxygen Concentrator Specialist. These trained and tested specialist are re-evaluated every six months to ensure they are on top of the latest technologies and oxygen therapy devices. A certified specialist can help you determine which options can meet your prescription requirements. They can answer questions about traveling with oxygen, pulse flow oxygen versus continuous flow oxygen, oxygen concentrator or liquid oxygen, high altitude operation and more! Call toll free to 800-397-5899 to reach one of our Certified Oxygen Concentrator Specialist.

Rental Program - Oxygen patients who are planning a trip and want to bring a portable concentrator with them may want to consider renting one. Many who have tried Vitality Medical's Rental Program have loved the small, lightweight concentrators so much that they have gone on to purchase one. Several models are 24/7 oxygen machines. We rent by the week with no limitation on the number of weeks. Our rental program gives you the opportunity to try before you buy! Vitality Medical has several lightweight portables approved by the FAA for airline travel for you to choose from. Call today for details at 800-397-5899.

Vitality Medical Buy Back Program - If you are not 100% satisfied with the concentrator you purchased Vitality Medical will buy your concentrator back and help you determine a better fit.

Oxygen Concentrator Loaner Program - If your concentrator needs to be repaired or serviced by a professional technician during the warranty period, Vitality Medical will provide a loaner concentrator for you to use during the repair period.

Easy Warranty Processing - If something goes wrong with your oxygen concentrator while it is under warranty, just give us a call on our toll free number 800-397-5899 to set up your repair. Remember, Vitality Medical offers a free loaner while your concentrator is being repaired. Note: warranty processing is only for concentrators purchased from Vitality Medical.

Oxygen Concentrator Rankings and Comparison Charts - If you would like to see a list of the top ranking oxygen concentrator choices along with detailed reviews, concentrator rankings and side-by-side comparisons, visit the links to our oxygen comparison studies below for detailed information.

Manuals and Documents


Inogen Bundle




Product Videos


Zen O Portable Oxygen Concentrator Review Video (2:40 minutes)



How To Change the Language (1.02 minutes)



Oxygen Therapy Solution (1.30 minutes)



Service and Maintenance Video (6:57 minutes)

Additional Information

Additional Information

Manufacturer GCE Group
Ships Free Yes
Oxygen Flow Continuous Flow, Pulse Flow

Shipping & Returns

Shipping Information

Leaves Warehouse: 1-2 business days - More details
Economy Shipping: Guaranteed 7-10 business days

Returns Information
Refer to our returns policy for more information.
Community Q&A

Product Questions

Lost my DC charge cord. Need price and availablity time for replacement.
WARNING: This product may contain chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. This product complies with all state and federal safety standards.

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