Not great The machine will only go to 4.5ml. the alarm does not sound. It is making a funny noise after just a couple weeks. When I called customer service he said the alarm was not important and if it doesn't sound after a couple more uses call back.

Truly reconditioned? - Thanks for the clarification Trying to figure out what the term reconditioned means. I bought a "reconditioned" Invacare 5LX. I had used an Invacare Platinum 10 prior to this that had a door on the side that contained a HEPA filter. The five LX did not so I took the top off to see if it had one inside which it did. The only thing is the entire interior of the machine was filthy, obviously never having been cleaned. Machine was dated 2000. The beds were rated 2010. The hepa filter was dirty. The only reconditioning I could see was the exterior of the machine was wiped down and the large particle filter on each side had been cleaned. The machine does work well.

I ordered a refurb but got new I ordered a refurb and with the Holidays it wasn't going to ship till after Christmas but a new one was available to ship before Christmas for just an extra 195.So it showed up today no problem!!!

Arrived quickly Arrived quickly, easy to set up.( had to look online for directions, as none were included with purchase) have used it both continuous plugged in, and pulse on the battery. Seems to work fine both ways. Need to look into an extra battery for backup. So far, I am very happy with the unit.

These resurrected oxygen concentrators… These resurrected oxygen concentrators have saved Medicare and I hundreds of dollars. My first one lasted 6 years. I just ordered my second with no complaints.