If you have any other company available to fill your needs, AVOID Lincare if at all possible. I have been attempting to return my equipment for over one month and I still have the equipment and Medicare has not authorized it any more due to physician orders, and I don't want to pay another $700. For the rental to Medicare. The right hand does not know what the left hand is doing. You know the customer service is horrible by looking at the reviews, and Lincare still has not rectified their problem.