I’m new here so sorry. I didn’t see anywhere else I could post this. I have a Invacare Perfecto 5-liter Concentrator for sale in downtown Seattle. Asking $5OO. Its in excellent working condition. Maybe you know someone who needs a home oxygen care unit? I don’t know how to post a picture of it here either. I am a real person in Seattle. My number is 206-852 7282. Please text me first with your name and a valid contact number. I’ll return your call. I’ll only sell it locally. If you don’t leave your name or aren’t using a Washington state area code. I’ll consider you spam. Thank you.