I ran across this edition of "The Pulmonary Paper" from June 2015. And the information is current and gives comparison of various brands and models of Portable oxygen concentrators.
I found the presentation of the information good and all of the facts are there as a basis for further investigation. It will be helpful sorting through all of the marketing BS that you ending up dealing with on manufacturers sites.
The link below will take you to the PDF version of the report, the comparison starts around page 15 of the report.
I purchased the Inogen One G2 model, it has pulse settings 1 - 6. I also purchased the double battery for it. It comes with a shoulder bag and a trolley. I find it works quite well with the shoulder bag. You can also get a backpack for it for working outside etc. The warranty is 3 years.
Inogen was one of the lightest and the batteries would allow it to work for up to 7-9 hours on the lower settings (2 or 3), and 4-5 hours on setting 5. So with two batteries you can handle a long flight. It is also approved for airline travel.
I purchased the one unit from 1st Class Medical, they seemed to be the most reasonable price at around $2400 US.
Thanks for information Gerald. I’ve had my eye on the Inogen One G2 model. As you point out in your original post “sorting through all of the marketing BS that you ending up dealing with on manufacturers sites.”
Ken, this showed up on one of my alerts today. hopefully you can use it:
Tax Deductible Oxygen Expenses :
It’s only 74,608 pages! IRS Section 502 which pertains to medical deductions is only 27 pages but we’ve hit some of the highlights here for you so you can ask your tax professional about them. www.irs.gov/pub/irs-pdf/p502.pdf
Gerald, thank you again for all the help! I purchased Inogen One G3 and am getting accustomed to it. I’m sure there are several portable oxygen concentrators that perform just as well but I found this one fit my needs.