Recommended Portables

Our wide selection of top rated portable oxygen concentrators are designed to be highly effective for all patients' oxygen needs.



SimplyGo is one of the lightest continuous flow portable oxygen concentrator in the world. With built-in sleep mode technology. C-PAP and BI-PAP compatible



Eclipse 5

The Most powerful pulse-dose and continuous flow machine made. The SeQual Eclipse 5 is the newest and most improved upon model in the Eclipse line.



Activox 4L

LifeChoice Activox 4L offers the longest lasting internal battery of any portable oxygen concentrator.




Zen-O™ weighs just 4.66 kg and can deliver up to 2 litres per minute of oxygen in either pulse or continuous flow. Zen-O™ is supplied with variety of accessories.



Zen-O Lite

Zen-O lite™ is the new ultra-lightweight portable oxygen concentrator from GCE Healthcare and weights just 2.5kg. The device is designed for patients with active lifestyles and require long term oxygen therapy (LTOT).



Inogen One G4

The Inogen One G4 is capable of providing oxygen delivery in an unbelievable small and quiet package. With flow settings from 1-3, the Inogen One G4 is designed to increase independence for most users 24/7.



Our Heartfelt Mission
It is our mission to deliver an oxygen solution that will be tailor-made to your personal circumstances. You will be assigned your own Personal Oxygen Specialist who will assist you and your family throughout your oxygen dependence moving forward. 
What to Expect From Your Personal Oxygen Specialist
We are Clinical Consultants. You will be assigned your own Personal Oxygen Specialist who will be with you throughout your journey.  He/She will be your first Point of Contact ready to answer questions, troubleshoot and provide First Line Technical Support.
The Most Modern Products
While the use of oxygen for medical purposes has been around since the 1800’s, the use of modern day oxygen concentrator technology is fairly new. We carry the latest technology on offer and are committed to helping you make the right choice.
You are not alone
While you may have certain personal needs specific to your disease there are millions of patients that are affected similarly to yourself.
We understand this and we're here to help.

Price Match Guarantee

Terms available upon request

Lifetime Support

Ask about our preowned units!

Toll free 866.285.0655


It is our mission to deliver an oxygen solution that is tailor made to your personal requirements.

"I have worked with Andrew for many years. He has assisted me throughout the progression of my COPD. He has always been there when I have needed him"

-General Seth McKee USAF, Retired

"Andrew’s commitment to service excellence has made the process of finding the right machine for me better than I could have imagined. As a result, I’m able to preserve my independence and activity while on oxygen. Remember, dying is easy, living is hard."

-Lester Tenney, US Army, Retired, Bataan Death March Survivor

"Our thanks to Andrew Kardish and O2 Assist for the exemplary manner in which they helped us select and then provided a portable oxygen concentrator that met her pulmonary needs and matched our life style.

By every metric that I use when evaluating a company's performance, the team at O2 Assist met or exceeded my expectations. They have proven to us to be professional, pleasant (no hard-sell tactics) and prompt, with very competitive pricing. "

-Steve Doerr MMC(SS) USN-Retired

"The staff at o2 assist is extremely helpful and accommodating assuring that we received the right machine. They took the time to listen to our needs and delivered great results. Thank you!"

-Maria V

Call today and we'll help you take back your freedom to travel again! 866.285.0655

Available Brands

We carry all the popular brands at the most affordable prices. Guaranteed!