Arrived quickly Arrived quickly, easy to set up.( had to look online for directions, as none were included with purchase) have used it both continuous plugged in, and pulse on the battery. Seems to work fine both ways. Need to look into an extra battery for backup. So far, I am very happy with the unit.

Oxygen Plus is a pleasure to deal with Oxygen Plus is a pleasure to deal with! Conversations with the owner were informative. The service was extraordinary. I would recommend this business to anyone with oxygen needs. I might add that this was my second experience with Oxygen Plus. More than five years ago I purchased a refurbished concentrator that is still going strong. The portable concentrator I bought this time is efficient and easy to operate.

I FIRST BOUGHT A USED CONCENTRATOR FROM… I FIRST BOUGHT A USED CONCENTRATOR FROM THEM WORKED GREAT THEN I HAD A ISSUE THEY TRIED TO HELP OVER THE PHONE GOT IT WORKING THEN THEY SENT A REPLACEMENT AND A FREE PICK UP OF THE OLD ONE.JUST RECENTLY ORDERED FILTERS AND THEY ARRIVED IN A COUPLE DAYS.

More Than Satisfied I was initially hesitant to order a concentrator online, but I'm so glad I did, and that I did via Oxygen Plus Medical. First, it was very easy to order. And I love that you can pay using Paypal. Second, they shipped in a timely manner (would've been faster had the weekend not gotten in the way). They emailed me a full pdf version of the manual, which of course is great have. And lastly, they packed the item extremely well. So I would definitely recommend using their services if you're in the market.

Placed order on 12/18 Placed order on 12/18. rcvd ack. on 12/19 rcvd message stating due holiday schedule NO. shipments until after 1/6 due closure. Tben got msg stating Fedex issued pckup order on 12/18 for pickup on 12/27 for est delivery on 12/30. Fedex had no record of pickup until I caled on 12/30 afternoon & foud closed until 1/6. Left uncomplimentary mesage about "service". Two hoirs later Fedex said just picked up machine est del 1/2. Arrived!!! Well packaged. Clean. Works. Lousy customer interface (auto computer input???)