There is no POC that goes to 5 LPM. The one that hospice gave you that you said goes to 4 LPM did not produce that much O2. The numbers on POCs, all of them, are just numbers and don't equate to LPM. They are just settings. The Inogen G5, which is the most powerful of the POCs only produces 1.26 LPM. Please go to these websites and review the information there:
https://www.pulmonarypaper.org/pulmonary-paper-...

https://www.pulmonarypaper.org/port-oxygen-conc...

You will see that POC, even the largest, will only produce O2 at 3 LPM maximum.

Your O2 provider can give you tanks that will allow you to go out and about. At this point, that's the only option you have unless you can get Liquid O2 prescribed.

The Goodwill Industries in some larger cities also sell / loan used Medical equipment of all types.
Give this location near you a call:
Goodwill Industries Int'nl.
306 Penco Rd
Weirton West Virginia 26062
Phone: (Phone number can only be seen by the question and answer creators)

Here is an alternative agency which may also be helpful :
https://www.carewestvirginia.org/list08_west_vi...
Stay safe and be well.

I saw a machine in internet (am skeptical) that is made in China. Says it is continuous flow and goes to 7, weighs 10 lbs. since only one on internet, and from China, either rip off or scam?
Company name is Moocno.com
Cost was. $700
Have a friend in China trying to investigate company if legit or not.

I have a Sequal Eclipse 5 but it only goes up to 3 continuous. Thats the best i could find. And the battery only lasts about 90 minutes at 3lpm.

I have been watching my local classifieds or Craigs list... every now and again there is a used one going fir a good price!