I currently a repair tech at Apria Healthcare and I must say this is very informative. I’ve only been repairing them for two years, unlike the other technicians, I haven’t been trained by Drive or Invacare, only by the techs I work around. This is a good video for those who have no idea. I wish I would’ve seen something like this on RU-vid when I first started working on the O2 concentrators it would’ve helped out a lot more and I just happen to come across these videos on accident when I actually looked them up maybe I typed in the wrong name, but I cannot find nothing it’s like I open the floodgates and stuff. It’s just pouring out with information. Anyways, thank you for the video. Great video it is.