Absolutely. We want you to buy with confidence so we offer a $49 adjustment service that you can purchase at the time of your checkout. You then need to instruct the seller to ship the machine directly to our servicing office. Then we adjust the machine to match your prescription and check to ensure that the machine is functioning as described in the listing. We then ship the machine to you with no additional shipping charges. Our service center is: CPAP Deals, 1324 Andover Ct Oklahoma City, OK 73120