Gray, Larry
GBCan’t get the Concentrator to work Can’t get the consentrator to work. We have tried overnight charging, waking machine up, for 3 days now. Battery shows no charge, and the monitor shows 0 charge also. Very disappointed. $2,300.00 is too much money to spend on this non working equipment.
Rick Higgens
GBNick Vannatta provided great… Nick Vannatta provided great information while learning about portable oxygen choices. Helped when it came time to know what we needed to order and answered all my questions throughout the process!
Nader Ghassemi
GBGreat Service Deborah M, returned my call in about 45 minutes. She was very helpful and knowledgeable. answered all my questions. After the purchase, she sent me the invoice and soon after the tracking number. I am a returning customer and will return again in future. I highly recommend OCS and specially Deborah M.
John Mumaw
GBFast & Efficient I needed a small used battery for my Inogen G5 portable unit. Found one here. Checkout was fast and efficient, and shipping was pretty quick, too. No complaints from me.
Fran Miller
GBNick Vannatta, Technical Specialist Your technical specialist Nick Vannatta was outstanding in his customer service. I am not sure he could have done anything better. I would hire him for my business!