DO NOT USE THIS COMPANY. I was discharged from the hospital with orders for a portable oxygen machine from Summit. They arrived 3-1/2 late with a 60 pound stationary unit that I can't move because of back issues. This is why the doctor ordered a portable unit. They said the doctor didn't order a portable. I heard her order it and saw her orders. Guy that shows up only wants to drop off what he has and collect my deductible. Didn't give me an O2 monitor, so I can't tell what my sats are. NON-EXISTENT CUSTOMER SERVICE. They didn't get deliver until after 8 pm, so I can only reach their after hours line, which is manned by a girl who barely speaks English and who can't do anything until the office opens tomorrow. I am posting my experience everywhere I can on social media. People should be warned about using these incompetent people for something as vital as oxygen. FURTHER MISADVENTURES WITH SUMMIT RESPIRATORY. Called to have them pick up their equipment. Was on hold for 18 minutes before anyone answered. Despite the delivery man yesterday insisting that there was no order for a portable unit, today I was asked if I was returning the portable unit. So they did have an order for it, and their delivery man lied to me. They will not give me a time to expect them for the pickup. I was told to wait at home all day for the delivery man to call me and tell me he is on his way. I explained that I could not be home all day. They insist I must wait for the delivery man.