Technical Service Notice



In October of 2009, Mountain High Oxygen engineered technical improvements to our EDS-O2D1 and O2D2 legacy products. These improvements include technical advancements involving both the hardware and firmware.

To provide our customers with the finest product, we are suggesting to our customers that they send in their units for these improvements.
This recommended routine service program should be accomplished once every two years (biennially).

If you have one of our portable systems and would like the upgrade, we would also like to examine your pressure regulator to determine if any upgrades are necessary and to check out its operational parameters.

As of 1 January 2013, the cost for this service is US $95.00 plus shipping. This includes all firmware and hardware upgrades as well as routine service parts. Any other parts replaced due to damage of field use would be subject to an additional charge.

Many of you may have had your EDS unit in for service since that date. You may have already received these technical upgrades. The latest Firmware upgrade is Rev. 2.F

Please e-mail This email address is being protected from spambots. You need JavaScript enabled to view it.
 if you question the need to send in your unit. Please include your name, the model, serial number, service date and repair order number if available. With this information we should be able to determine the status of your unit.

Before returning your EDS unit e-mail us at This email address is being protected from spambots. You need JavaScript enabled to view it.
 to obtain a Return Authorization Number (RMA).

When requesting an RMA please include your NAME, PHONE NUMBER, SHIPPING ADDRESS and serial number of the unit.

We will then in return send you an RMA form to include with your shipment. Expect the turnaround time to be between 7 to 10 working days after receipt of your unit.

We recommend shipping only by a reliable courier such as UPS or Fed-Ex. The use of US Postal Service is not recommended, especially when shipping from outside of the country.

Related Documents: