I have recently experienced a power outage at home (apartment), and as a direct result have ended up in the hospital for 8 days, and currently am in a multi care center for rehab All together I have been away from home, so far, for 4 weeks and counting. Unable to return home, until the power issue where I live is fully resolved. Although repairs are being addressed, generators are still being used. Unfortunately for me when the outage occurred I did not hear the alarm on my concentrator when it happened, and was without oxygen for a while (I am on 6lpm, can't be without for very long. I am purchasing a battery operated generator from a company called Geneforce. Am hoping that someone has invested in this generator, and if so, what has been your experience? It is a large investment, but I must do this for peace of mind. Without further details, my experience nearly caused me my life. I live alone, and must feel safe in my home environment.