This company is incompetent, use AeroCare instead! They ignore doctor’s prescriptions and never get back to the Dr or patient for anything. I’ve had 3 orders put in to them over a four month period. The first order was ignored for two months. Second was never filled. Last one I spoke to a young woman who informed me that my diagnosis did not warrant oxygen overnight. When I asked if they had reached out to the doctor I was told a SALES REP would go visit the doctor about it. I spoke with my doctor office who then sent my Rx to AeroCare and I received a call back within an hour, and the machine delivered the next day. Do not use this place.