Questions about Oxy Concentrators

I currently use O2 with APAP (2L/M) with a supposedly portable concentrator: O2 Concepts Oxlife Independence. I am thinking about getting an alternative that might be more travel friendly and less like constantly towing a wheely throughout the day. I would perhaps find this more burdensome given that I often transport photo gear as well. Does anyone here have any specific experience traveling with one of these or similar units. (it weighs about 15-18 lbs and is roughly 8X8X12 with the handle folded)

An alternative for travel would be a significantly smaller unit but with the serious limitation of being pulse only and not useful with the xPAP. Wise council is welcome

They now make small O2 units that are full flow units. Battery powered also. Good for travel but I wouldn't wear one out at home. Jim

The wisdom of having a backup is especially valid here.

I completely agree with both points. The sticking point is cost - the least expensive constant flow small units are around $3000 or more - a lot for a backup and probably not rugged enough to be a replacement. I will continue to look (either a bargain or the money).

Having spent 23 hours in a 707, twice I've had my lifetime of travel, my answer is to stay home and plugged in. My got to go, has went and gone! Jim