CURMIO Portable Oxygen Concentrators Backpack, POC Travel Carrying Bag with Mesh Panels for Breathability, Compatible for Inogen, Oxygo, Caire Units, Gray, BAG ONLY

It seems sturdy and there is space for an extra battery, a charging adapter or personal items.Although it can be worked around, there is no direct opening to connect the charging adapter.

I really liked the style of this backpack. Yes, it can hold quite a bit, actually,..it held Every item that goes with my Inogen One G3 POC. HOWEVER, there were certain issues I didn't want to overlook. One issue was the poor fit. Second, the hold down straps would be blocking the vents on my unit. (This can easily be corrected if you put Styrofoam padding under the G3 to raise it accordingly. This would also alleviate problem 3, which would be the hose getting kinked. I may decide to get an OEM backpack from Inogen or a Medical Supply and that should fit perfectly. Problem 4 would be the car charging cord. It too doesn't have any pass thru opening, you need to unzip to get access here. I really did like it but it's not 100% compatible and I will be returning it. Probably OK for other style Inogen's, but not mine.

I've owned mine for 1 year to the day, today. Here are my thoughts:1. Overall, the pack is comfortable and not too heavy. It holds the POC and my wallet. The bottom container can hold my double battery and inhaler and a few small things. BUT when you open it everything falls out.2. Fits my Inogen G4 fairly well, but it was made for a bigger machine so the G4 slops around inside a bit despite the velcro strap to hold it in place.3. There is a lot of sturdy netting for ventilation; however, it still gets REALLY hot in the pack (and on my backside). There just isn't enough ventilation on the sides. I have spent many trips holding my pack in front of the a/c unit to cool it off. Worst cases mean I have to remove my POC from the pack to cool it down.4. The vinyl top is interesting, but not really practical. I always have to open it to see the screen anyway, so why bother? It also seems that the vinyl top magnifies the heat of the sun causing the POC to overheat.5. The bottom pouch does hold a lot; however, if I'm not traveling out of town I don't need it. When it's empty it folds under the pack awkwardly and is a nuisance.6. The pack will not sit on it's bottom without support (see #5).7. The hook is sturdily attached, but it's narrow enough that it doesn't hook onto many things rendering it useless.8. My left strap is becoming separated from the main body and showing fraying. Why? I don't carry it around on one shoulder. I treat it gently (I'm old and take care of my stuff.)9. It's annoying that there is no exit hole for the cannula to go through. Instead my cannula has to sneak out of the side of the vinyl panel and this causes a king. Couldn't you put a riveted hole up there?10. Lastly, I need a new one soon because of the strap. But I cannot believe you still haven't made one for the G4 that isn't black or brown. Yuck. Black would make the overheating problem worse. I have the brown one. I see you make purple and lavender packs, but not for the G4. I may have to shop elsewhere for my next one.p.s. PLEASE TELL ME HOW TO GET MY STRAP FIXED!!

My husband’s portable 02 generator is an older model because we really had to search to replace his original backpack carrier. This works as a replacement, but we immediately had to take it to the shoemaker to disassemble it and repair the strap that ripped out at the seam. He likes the set up though that allows him to carry an extra battery and chargers.

I have an IGO2 POC and there are not any backpacks made specifically for them. I found this backpack and it is working on pretty well. the straps a little tight because the IGO2 is a little bigger than the POC's the backpack was intended for, but it does fit. If you leave the two zippers towards the bottom of the zipper area, you can charge (both in the car and in the house) without removing the unit. Battery changes are also easy while leaving it in the backpack.The straps could be a little more padded and the storage pocket could use a little more structure since it is on the bottom of the bag and if it is not full it kind of crumples when you place it on the floor. I plan to solve that by lining it with a plastic dish of some sort (the kind lunch meat comes in maybe).I much prefer this over the bag that came with the unit and it is comfortable for the most part.

In actuality I can't even give a 1 star to the seller of this item or Amazon for selling it on their store, but I was forced to give it one star. This product is NOT UNIVERSAL POC!!!! I purchased the bundle so I could have a light walking backpack and a roomier travel bag when I needed to transport more items. Both were advertised for the Simply Go Mini but heated up so badly with prolonged use that I was very scared I would not make it back home if I didn't catch on fire before I got there. What other POC's it will not work with I cannot say. It plainly lists the Simply Go Mini as compatible, however, it WILL NOT VENTILATE properly with the Simply Mini Go, so buy at your own risk. Because I discovered the FAULT with this product a little late due to my use schedule, I got stuck with a 20% restocking fee and AMAZON REFUSED TO ASSIST WITH THIS INJUSTICE. In all fairness the first two service reps did get an exception so I could return the backpacks and not get cheated out of the whole costs to me. The third representative was not so helpful. I know for a fact that they can assist with this kind of stuff because I had an order about three years ago that Amazon made the seller make good their merchandise costs. It was not my fault I had to return it; it was not compatible as advertised. I am as disappointed with Amazon on this as I am the manufacturer and seller. Amazon should force this manufacturer to stand by its claims or remove the claims of compatibility. This is false advertising. I did manage to return it and get 80% of my cost refunded. Then, I was left with having to purchase another backpack for my oxygen.

Very good quality very good price that everything properly so thank you