Check out the concentrators at VARONINC.com .They have two portable units that provide continuous flow rates of up to 6 L .I purchased both of them and have been very satisfied. One is made especially for car travel using the 12 v outlet in the car .

CrocSee 25ft – 1/2 inch Braided Cable Management Sleeve Cord Protector – Self-Wrapping Split Wire Loom for TV/Computer/Home Theater/Engine Bay – Black/Red https://a.co/d/ckLUHGEi

I use a bright red braided cord that folks typically use to organize their stereo equipment wires.Available on amazon.Braided speaker wire cords.

Log into… 2ndwind.org
Great resource for post lung transplants

I did share the article on Zinic with my doctors they were non committal and just commented “interesting “ I was probably more surprised that they had not already seen the article.Anyway,I did start taking a Zinic supplement in July and I feel it has helped me .I only need oxygen when exercising. Can’t say for sure it is a direct result but I… Read more

I tell them you can have your own opinion but not your own facts.If you take the time to do some fact finding you will if nothing else be more educated .