Oxygen Generator

Hey everyone . we have come across an oxygen generator during a clean out . doesn't seem to be marked to a rental service . for some reason oxygen is a prescription . so for someone out there that doesn't have insurance and needs this device . we don't want alot of money it's worth about $ 2000 from my reaserch I had a glass blower offer me $500 but I feel like around half that for someone that needs it for its intended purpose would be more fitting . it's only got 1400 hours on its so what I've be told it's got more than % 90 life left . reach out if you need it . Thanks