
SHIPPING TIMES
Orders placed before 3:00 p.m. M.S.T. qualify for same day shipping, (Monday through Friday) as long as we have all of your required documents (prescription and return and exchange agreement) on file. While we try to ship everything out as quickly as possible, it may take up to 24 hours for your order to be shipped.
Standard shipping time frame for orders is 4 - 10 business days.
Please note that our shipping carrier (UPS) does not deliver on Sundays. For instance, Next Day orders placed before 3:00pm M.S.T. on a Friday are not delivered until the next business day, Monday.
We require a full street address on your order as we cannot ship to a P.O. Box.
SHIPPING RATES
Ground Shipping: Ground Shipping is free with the purchase of any home or portable oxygen concentrator unless you get a promotional discount. A standard $20.00 shipping fee is added to the purchase of all accessories.
Next Day and 2nd Day Air shipping options are available on most orders at an additional cost (exclusions apply). Saturday delivery is available in select areas determined by UPS. Additional costs apply for Saturday delivery.
Alaska/Hawaii orders are an additional shipping cost. Please call us toll-free for pricing at 1-800-520-5726 between 8:00am and 5:00pm, MST.
*FREE UPS Ground is only available in the 48 contiguous states.
ORDER TRACKING
We will provide you with a tracking number via e-mail the minute we ship your package out. The tracking number can be located at the top of your invoice. You can track all orders at https://www.ups.com/WebTracking/track.
If you do not see your tracking number or if you did not receive an invoice please give us a call at 1-800-520-5726.
CANCELING AN ORDER
In most cases, once an order is placed, we are not able to cancel the order due to the speed in which we process and ship orders. If you no longer want a product after the order has been placed, please contact us for a Return Merchandise Authorization via email or telephone once you have received the product. Unauthorized returns/refused shipments will not be accepted or credited.
1st Class Medical is here to make sure our customers are satisfied with our products and services. Our return policy allows you to return or exchange your item purchased within 30 days of receipt, guaranteed. With our 30 day money back guarantee, if you need to return or exchange your concentrator you are responsible for all shipping/handling costs.
Upon receipt of your item please inspect the box for damages. Once you open your package inspect your unit, we test every unit before it leaves our facility, but sometimes units do arrive damaged or defective. We apologize for this inconvenience and ask that you contact us immediately. If a unit is damaged in shipping we must notify the shipping company within 48 hours. We cannot be responsible for shipping damage if you wait longer than 48 hours to notify us.
Within 30 days after your unit has arrived, if for any reason you are not satisfied we will refund your money 100% (excluding shipping & handling) for all new units. During those 30 days feel free to use the unit and make sure it is to your satisfaction, for fewer than 10 hours over the manufacturers test hours, which is noted on your sales receipt.
We can’t sell a unit as new if it has been damaged or used for more than 10 hours outside of the factory. The 100% return policy is only valid if you contact us within the first 30 days and the unit remains in unused / like new condition, has not been used in a smoke-filled environment, and has been run fewer than 10 hours over the manufacturers test hours. Units must be returned in original packaging for 100% return policy.
All returns require a return authorization. Please contact us, 1-800-520-5726, so that we can assist you with doing so. You must pay for return shipping costs. When returning the unit to us please insure the package for the full value.
Within the 30 days, please contact us and will we assist you with either a refund (based on the number of hours the unit has been used.) or an exchange can be done to a unit that better matches your needs. The restocking fee for the units returned within the 30 days with over 10 hours of use is 25%. All returns require a return authorization. You are responsible to pay for return shipping costs. When returning the unit to us please insure the package for the full value. Contact us to receive a return authorization.1-800-520-5726
For all exchanges or refunds… we must first receive the original unit before we ship out an exchanged unit or issue a credit.
After 30 days, we apologize for any inconvenience, but we cannot refund or exchange your unit.
All items returned without a return authorization, including items returned to us for refusal delivery, are subject to the 25% restocking fee.
Any units that are returned due to customer-caused damage, the customer is responsible for all parts, labor, and shipping charges to return the unit to us for repair.
All new units come with a factory warranty. Warranty repairs can be handled by contacting us 1-800-520-5726. You are responsible for all shipping costs on warranty work. If a loaner is required we will rent you out a unit for a weekly fee.
We strive to provide all of our patients with the best service and care possible. With the addition of our brand new SwapIT program, we wanted to find a way to make the repair process as convenient as possible and to make your life easier.
Benefits of the 1st Class Medical SwapIT Program:
How SwapIT Works:
To take advantage of 1st Class Medical's exclusive SwapIT program, or if you have any questions, call 1-800-520-5726 and speak with a respiratory specialist today!
You can also e-mail us at info@1stclassmedical.net
Get the oxygen you need without the restrictions of supplemental oxygen tanks using the Zen-O portable oxygen concentrator. Standing just 8.3” W x 6.6” D x 12.3” H and weighing in at 10 pounds with one battery the Zen-O is one of the smallest and lightest continuous flow units on the market.
Don’t let the Zen-O’s size fool you though. It has a high oxygen output to meet your daytime and nighttime oxygen needs and it’s CPAP/BiPAP compatible. Whether you’re looking to travel or have a quality oxygen concentrator for everyday use, the Zen-O has you covered.
Battery life is an important feature for portable oxygen concentrators. The longer the battery life, the more freedom you have. With the Zen-O POC you are getting the unit with the best battery life in its class! It operates using one or two batteries giving you the ability to choose more battery life or a lighter unit depending on what you have planned. The battery slots are covered to keep your batteries safe and secure, but you can easily access them when needed.
Pulse Flow Battery Life: Up to 8 Hours on a setting of 2
Cont. Flow Battery Life: Up to 1.5 Hours on 2 LPM
The Zen-O portable oxygen concentrator is ideal for active oxygen patients or patients looking to become more active. The small and lightweight design makes it easy to bring virtually anywhere you go and it’s equipped with technology that automatically adjusts to your breathing rate. Whether you’re exercising, having a bad breathing day, or dealing with other respiratory difficulties the Zen-O automatically increases the volume of oxygen delivered every minute in response to your needs. Not to mention, it comes with a custom carrying case and a wheeled travel cart giving you the ability to choose how to transport your concentrator.
Operating a medical device shouldn’t be like rocket science for the end-user and Zen-O took that into account when designing their machine. The control panel is equipped with large buttons and an easy-to-read LCD display. Each button is clearly labeled with its operation so there isn’t any confusion when setting your concentrator up. The large LCD screen displays vital information like remaining battery life, which setting you’re using, and it even displays a message if your machine alarms. That means no more guessing what’s wrong if your concentrator alarms!
[fa icon="quote-left"] I travel quite a bit and I am able to go anywhere without getting tired carrying around a heavy machine. [fa icon="quote-right"]
[fa icon="quote-left"] Thank you for such great service. I will definitely recommend your company to others in need of the type of equipment you sell or rent. I am so pleased with the speed in which this transaction was handled and will keep your firm in mind should I need other oxygen equipment. [fa icon="quote-right"]
[fa icon="quote-left"] Questions answered quickly, received product earlier than expected, and have put it to work. I've been with them happily since 2012. I can now get around! [fa icon="quote-right"]
Flow Rate | Expected Battery Life w/ 1 Battery | Expected Battery Life w/ 2 Batteries |
Pulse 1 | Up to 4.0 Hours | Up to 8.0 Hours |
Pulse 2 | Up to 4.0 Hours | Up to 8.0 Hours |
Pulse 3 | Up to 3.0 Hours | Up to 6.0 Hours |
Pulse 4 | Up to 2.25 Hours | Up to 4.5 Hours |
Pulse 5 | Up to 2.0 Hours | Up to 4.0 Hours |
Pulse 6 | Up to 1.75 Hours | Up to 3.5 Hours |
Cont. 0.5 LPM | Up to 3.0 Hours | Up to 6.0 Hours |
Cont. 1.0 LPM | Up to 1.75 Hours | Up to 3.5 Hours |
Cont. 1.5 LPM | Up to 1.25 Hours | Up to 2.5 Hours |
Cont 2.0 LPM | Up to 0.75 Hours | Up to 1.5 Hours |
Have peace of mind knowing the Zen-O portable oxygen concentrator can supply you with oxygen 24 hours a day. It runs on pulse flow and continuous flow modes to meet your daytime and nighttime oxygen needs, even if you are required to use a CPAP or BiPAP machine at night. Because the Zen-O can be powered using batteries, an AC power supply, or a DC power supply you will be able to use your concentrator virtually anywhere you go. For extended use, the AC and DC power supplies will power your concentrator for the entire time you have it plugged in.
The Zen-O portable oxygen concentrator comes with both the AC power supply and the DC power supply allowing you to power your concentrator and recharge your batteries anywhere you can plug in your power supplies.
When you are at home, the AC power supply will simultaneously recharge your batteries and power your concentrator. Whether you’re watching a movie with your grandkids or need nighttime oxygen on your vacation, the AC power supply will power your machine until you unplug it. The AC power supply can also be used in your vehicle (car, truck, RV, or boat) if it is equipped with a 110v outlet or a power inverter. is designed for home use and can be used in your car if your car has a 110v outlet or an inverter.
The DC power supply is responsible for powering your concentrator and recharging your batteries while you are on the go. It plugs into the cigarette lighter or 12v outlet in your vehicle and draws power from your vehicle’s battery. Because the DC power supply runs off of your vehicle’s battery it may take longer to fully recharge your concentrator’s batteries.
The external battery charger gives you the ability to recharge your extra batteries without installing them in your concentrator. It is equipped with an AC power cord that will plug into any 110v outlet and it charges one battery at a time. Because the external charger is not powering your concentrator and it only charges one battery at a time, it will be your fastest and most efficient option to recharge your Zen-O 12-cell batteries.
Weight |
10 Pounds |
Dimensions |
12.3” H x 8.3” W x 6.6” D |
Flow Rate |
Continuous Flow 0.5-2.0 LPM Pulse Flow Settings 1-6 |
Battery Life |
Continuous Flow Up To 1.5 Hours Pulse Flow Up To 8.0 Hours |
Power |
100-240 VAC, 50/60 Hz; 24 VDC |
FAA Approved |
Yes |
Warranty |
3 Years |
^A valid prescription is required for the purchase of this product
Yes we are! You will notice our badge of approval on this page which notes that we are an authorized dealer. Please make sure any company you plan to do business with is an authorized GCE dealer.
The GCE Zen-O is one of the smallest and lightest continuous flow portable on the market at 10 pounds.
The Zen-O portable oxygen concentrator can operate using one or two batteries. With 2 batteries on a pulse flow setting of 2, you can get up to 8 hours of battery life on a single charge. With 2 batteries on a continuous flow setting of 2.0 LPM, you can get up to 1.5 hours of use.
With the Zen-O you have two different charging options. You can plug your concentrator into the AC or DC power supply to recharge your batteries. The AC power supply will recharge your batteries faster than the DC power supply. In the future, GCE might release an external battery charger which can make recharging your batteries easier and faster!
If your battery is completely drained you can expect it to take up to 3-4.5 hours to achieve a full charge.
The Zen-O offers both pulse flow and continuous flow modes. It offers pulse flow settings 1-6 and continuous flow settings 0.5-2.0 LPM.
The Zen-O POC is one of the quietest continuous flow units on the market. According to the manufacturer, they had the sound level tested by two different companies. The decibel range is from 38dB to 42dB. However, GCE does not specify which setting the machine was tested on.
The Zen-O has an operating altitude range of 0-9,000 feet. If you go above 9,000 feet the concentrator’s performance may suffer.
"1st Class Medical does not provide any Home Servicing of equipment"