Here are the most common questions our users have regarding portable oxygen concentrators. Please contact us with any additional questions you may have.

Travel FAQ

Sorry, but NO. Almost all clients that we service need supplemental oxygen at all times and, more importantly, you need time with the unit before you board.

We recommend that all components are brought with the unit. One never knows when they will need to charge batteries or use the unit in a vehicle. Leaving any components behind is up to the customer, but it may limit your mobility and enjoyment of the device and could potentially render the unit unusable.

No. For a complete list of airlines who do allow portable oxygen concentrators on board, please call OxygenToGo. If your air carrier is not listed, you may want to call a ticketing agent to verify its policy and alternatives

EverGo is ideal for people who enjoy traveling and rely upon oxygen therapy. EverGo operates from a wall outlet (AC power), an automobile charger (DC power), or its internal rechargeable batteries: two lithium ion batteries similar to the type used in laptop computers. The device has been cleared for air travel by the FAA. Because airline policies for traveling with an oxygen concentrator vary, you need to check with your airline before flying with EverGo.

The list of commercial air carriers allowing the use of EverGo during flight is growing monthly. Check the current list of carriers that have cleared EverGo for air travel:

Air Berlin
Air Canada
Air France
Air Iceland
AirTran Airways
Allegiant Air
American Airlines
American Eagle (American Airlines)
ASA – Atlantic Southeast (Delta)
British Airways
Cathay Pacific
Champion Air (NWA)
Chautauqua Airlines (Delta)
Colgan Air (Continental)
Comair (Delta)
CommutAir (Continental)
Continental Express (Continental)
Continental Micronesia (Continental)
Freedom Airlines (Delta)
Gulfstream International (Continental)
Mesaba Airlines (NWA)
Midwest Connect
Northwest Airlines
Pinnacle Airlines (Delta)
Singapore Air
Sun Country
SAS Airlines
Shuttle America (Delta)
US Airways
Virgin Atlantic

Most airlines require a copy of the prescription from your doctor. Every airline is different so please contact the airline to verify.

In flight is the only area that requires battery use. Beyond the aircraft you can plug into a car or wall outlet.

Yes. We provide three additional batteries with each device, which can supply approximately three hours of power each for a total of approximately nine hours. For longer flights where no outlets are available onboard, we can provide additional batteries to ensure power for the duration of any flight.

Yes. Most POCs will function on European (220) voltage with the correct plug adaptor. (No current or voltage converter needed.)


Portable Oxygen Concentrator.

For the Inogen, Sequal, and Invacare: during pulse mode the cannula must be seven feet long or less in order to properly sense the patient’s breath and deliver oxygen early in the breathing cycle, when oxygen is most beneficial.
For the EverGo, the cannula can be up to 30’ long.

This device is very reliable in monitoring a patient’s oxygen saturation levels. The unit can be used to monitor oxygen levels and to titrate, if necessary, the flow rates of the unit to obtain the patient’s saturation goal. We recommend that users check their saturation on their home equipment to assess what their baseline saturation is and use this as a goal saturation (or ask your doctor for his recommendation) with a POC.

This error message indicates that the oxygen concentration is below 82% while the concentrator is used in one of the pulse flow settings (settings 1 through 5). This error may occur if the concentrator is turned on but is not being used (no one is breathing on the device). To confirm this is the issue, either breathe with the cannula or place the device in satellite mode for 1 to 2 seconds and then return the flow control back to the original setting. After a few minutes, the O2 alert should clear. If this error continues to occur, please contact OxygenToGo Customer Care for further instruction.

9.9 lbs (4.5 kg) with 2 batteries and carrying case
8.5 lbs (3.8 kg) with 1 battery and carrying case

If the concentrator is run until the battery is depleted, the system is shut down (oxygen production is stopped) and this message is displayed. Even if the user connects the power plug at this time, further action is required. In order to cease display of the message, the user should press the ON/OFF button to shut the unit down completely. The user should then press the ON/OFF button to restart the concentrator.

This message is displayed if the concentrator has difficulty communicating with the battery. The user should remove the battery and reinstall it (first shut the unit down or power it using the AC power supply). If this error regularly occurs, please contact OxygenToGo Customer Care for further instruction. A battery error will prevent the battery from powering the concentrator.

The concentrator will shut down if the battery temperature is too hot. If the battery is just below this temperature, the user will receive the Battery HOT Warning on the display, along with an audible warning. This warning is simply intended to alert the patient that continued use of the battery may result in system shutdown if the battery temperature continues to increase. Note that the temperature of the concentrator and battery will be higher when used at higher flow settings. Suggestions for reducing the battery temperature are provided in the Patient Manual. If the battery regularly becomes too hot, please contact OxygenToGo Customer Care for further instruction.

In order to begin charging, the battery must be below a certain temperature. If the battery has recently been discharged in a concentrator, depending on environmental conditions, it may exceed this temperature and must cool down prior to charging. To expedite cooling, the user may run the unit on AC power, remove the battery for 10 minutes, or replace the battery with a cool battery, if desired. If the battery is left in the concentrator, the alert will continue to appear until the battery cools sufficiently to begin the charging sequence.

This message is displayed if the concentrator has difficulty communicating with the battery. The user should remove the battery and reinstall it (first shut the unit down or power it using the AC power supply). If this error regularly occurs, please contact OxygenToGo Customer Care for further instruction. The battery will continue to power the concentrator if it is the sole source of power, but the concentrator will not be able to track the remaining charge on the battery. If AC power is used, the battery will not charge with a comm error showing.

This message may result from an error in communication between the battery and the concentrator. Remove the battery and reinsert in the concentrator. If the error regularly occurs, please contact OxygenToGo Customer Care for further instruction.

If this error repeats itself to the point of becoming a nuisance, please contact OxygenToGo Customer Care for further instruction.

This message indicates that the concentrator has detected pressure that is lower or higher than expected. When this happens, the concentrator is shut down. An Error 4 message is usually due to a low pressure condition. This may be caused by placing the concentrator in the Satellite setting without connecting a Satellite Conserver, or by having a leak in the tubing to the Satellite Conserver. This situation will allow the product gas to leak from the system, thereby reducing the internal pressure. If the user is sure that such a leak did not occur, then there may be a problem with the concentrator and it may need to be returned for troubleshooting. Please contact OxygenToGo Customer Care for further instruction. Note: the Error 4 message will not display until the concentrator has been operating for at least five minutes.

This message indicates that the concentrator software has detected oxygen concentration below 50%. When this happens, the concentrator shuts down. An oxygen concentration this low may be caused by placing the concentrator in the “Satellite” setting without connecting a Satellite Conserver, or by having a leak in the tubing, allowing the product gas to leak from the system and thereby reducing the oxygen concentration. If the user is certain that such a leak did not occur, there may be a problem with the concentrator and it may need to be returned for troubleshooting. Please contact OxygenToGo Customer Care for further instruction.

If the internal system temperature is too hot, the concentrator will display this message and shut down. While it is unlikely that the system will become this hot, the risk of this situation can be minimized by operating the unit in a comfortable environment and ensuring the intake and exhaust are clear of obstructions. The intake particulate filter should be kept clean, and there should be no filter in the exhaust vent. If this error regularly occurs, please contact OxygenToGo Customer Care for further instruction.

The Respironics EverGo portable concentrator separates oxygen from room air and delivers it through a single lumen cannula. Room air contains approximately 21 percent oxygen and 79 percent nitrogen. By passing the air through a series of molecular, bacterial and dust filters, EverGo removes nitrogen and stores nearly pure (therapeutic) oxygen.

Its two rechargeable batteries provide up to 8 hours of oxygen while operating at a typical patient setting of two (20 breaths per minute). See the chart below.

Flow Setting Rate of 20 BPM
1 12 hours
2 8 hours
3 6 hours
4 4 hours
5 4 hours
6 4 hours

EverGo can deliver a maximum of 1050 ml/min. That is more oxygen per minute than any other portable concentrator available.

It is about the size of a camera bag or small carry-on bag.
12” L x 6” W x 8.5” H (30.5 cm L x 15.25 cm W x 21.6 cm H)

Your doctor can determine whether or not EverGo portable concentrators are appropriate for you while you sleep. An overnight pulse oximetry test may be necessary to measure your oxygen saturation level while using EverGo at night.

A standard single-lumen nasal cannula and tubing (not supplied) should be used to deliver oxygen from EverGo. The device works with cannula tubing up to 30 ft. (9.1 m).

All product operation occurs via an easy-to-read, simple-to-operate touch screen interface. The touch screen is a backlit liquid crystal display (LCD) located on the top of EverGo.

Pulse dose settings can be changed from 1-6 in one-half increments
Unit can be turned on and off

EverGo’s two-battery system helps to ensure long operation duration times. For example, at a setting of 2 and 20 breaths per minute (BPM) with 2 fully charged batteries, the device can be expected to run for 8 hours. Under similar conditions at a setting of 4, 5, or 6, it can run for 4 hours.

Up to 8,000 feet (2450 meters)

The only patient maintenance required is to clean the air inlet filter once a week and the EverGo case as needed.

Gross particle filter – to be replaced as needed by the homecare provider.
Micro-felt filter – to be replaced as needed by the homecare provider.
Inlet filter – to be replaced as needed by the homecare provider.

Typical New Power Cartridge Duration-Of-Use (Battery)

Flow Setting Continuous Flow Mode (LPM) Pulse Flow Mode (Setting)
0.5 4.4 hours
1 3.7 hours 4.4 hours
2 1.8 hours 3.6 hours
3 1.3 hours 3.0 hours
4 2.6 hours
5 2.3 hours
6 1.8 hours

Remove the filter.
Wash the filter in warm water using a mild detergent solution.
Rinse the filter thoroughly and allow it to dry.
When completely dry, reinsert the filter into the cabinet.

That’s a very important question. The FAA ruling requires “….FAA-approved POC to bring an adequate number of fully charged batteries onboard to operate the device for not less than 150% of the expected maximum flight duration.” Page 21 of DOT-OST-2004-19482-1300

Use the EverGo DC power cord to plug into the vehicle’s cigarette lighter or DC power input. When EverGo is operating from a DC power source, the batteries installed in EverGo will begin recharging.

No. Make sure the vehicle has been started before plugging in your DC power cord. If EverGo is operated using the DC power cord while the vehicle engine is turned off, it could deplete the vehicle’s battery.

Inches Centimeters
Height 19.3
Width 12.3
Depth 7.1

With power cartridge: 17.9 pounds (8.1 kg)
Without power cartridge: 14.5 pounds (6.6 kg)


Yes. This device has only been approved by the federal government for those over 18, unless your physician approves for “off label” use.

We usually ship the devices in our custom-made shipping containers to destinations within the continental United States via FEDEX 2nd-Day Air. We charge the customer exactly what FEDEX charges us; we do not attach any handling charges.

If the customer requires faster delivery, we usually use FEDEX overnight shipping. If the destination is outside of the continental U.S., we may use other carriers. Here, too, we charge the customer the same that these shipping services charge us. For international shipments, the customer is responsible for any duties, customs, or import fees due.

If canceled within one month of scheduled rental, we will refund the entire rental fee. If canceled less than one month before scheduled rental and before the unit is shipped to the customer, we charge one-half of the rental fee (not including shipping). If the unit has already been shipped when the reservation is canceled, we charge the full fee, including shipping.

We will charge your credit card after the reservation is made and the contract is signed. Payment is necessary to confirm your reservation.

You must call OxygenToGo after you fax your rental paperwork to confirm receipt of rental paperwork. We will then confirm your reservation at that time.

The Inogen One device is expensive. If it is lost, damaged, or stolen during the rental period (when not in the hands of the shipping agent or in our office), the customer bears the responsibility for replacing the device, valued at US$6,000, and will be charged to the renter’s credit card. By purchasing a damage waiver for approximately $98 per week, OxygenToGo will retain this responsibility and replace the unit at our cost if damaged or lost. In the case of theft or loss, the customer must submit a police report to verify the claim for the prepaid insurance or the insurance will not be enforce.

Yes. These devices are in high demand. We recommend that you reserve your unit as soon as the details of your trip are finalized.

OxygenToGo is not a durable medical equipment provider covered under Medicare or other insurance companies. Your best recourse is in contacting your insurance agent to determine if it will compensate for the Inogen One system. We do not bill insurance companies but do provide you with a receipt which can be submitted. Payment from insurers is between you and the insurer.

Only you and your doctor can determine if EverGo is the right oxygen concentrator for you. If you are active and require a highly portable source of oxygen, EverGo is ideal.

All the return paperwork is inside of rental unit when delivered and should be the first item you see upon opening. Follow the simple instructions and don’t hesitate to call with questions. 877-736-8691