quiet oxygen for close quarter camping

I have been more challenged of recent. I have come to the decision I need to give up an art fair in the woods for 5 days in the summer that I have vended at for 41 years. It is dusty there and the walks are long. It's a ways just to get to the car. I am on nocturnal oxygen currently. Does anyone know of a portable unit that is quiet that would run for a nights sleep. I do have charging options during the day but I don't know of anything that would get me through the night. My compressor makes a spish noise every few seconds and I know that would be interruptive to others in my area. The tents are wall to wall. This has been a family event for me, both immediate family but also many many friends I see there just once a year. My husband and kids are upset with me. They have not experienced what it is like to be fighting for breath and so limited. Any suggestions? I have had a lot of changes in my life this year, had to stop teaching and don't see those folks anymore. I am taking a couple of classes and doing some volunteer work but the more this disease progresses the more isolated I feel. And the more things I have to give up. I know staying home alone while they are all out there will be a challenging time. Not sure what would be more challenging, going and struggling to breath or staying home alone thinking about missing the event.