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Frequently Asked Questions (and Answers!)

Do you sell used equipment?
Do you accept Medicare or insurance?
How can I pay for my purchase?

These are just a few of the questions we're often asked. To help others with similar questions, we've compiled them, along with our answers, and listed them below.


About OxiMedical Respiratory

  • What are your hours of operation?
    Our showroom in Phoenix, AZ is open weekdays from 8:00 am to 4:30 pm.

    Our phone hours of operation are from 9:00 a.m. to 9:00 p.m. EST Monday thru Friday. We are available by voice mail and e-mail 24 hours a day and will respond to your needs as quickly as possible, usually within 24 hours.
  • Where is your company located?

    Our showroom is in Phoenix, AZ and we have a customer service representative in Michigan; however we service the entire nation through our mail order delivery service. We come to you, so you don't have to go anywhere!
    Here is a link to access a map to our location in Arizona - Google Map

How Concentrators Work

  • What is the Difference Between Continous Flow and Pulse Flow of Oxygen?
    Traditionally, oxygen concentrators have provided a continuous supply of oxygen to a patient regardless of whether the patient was inhaling or exhaling. All home oxygen concentrators provide continuous flow oxygen.

    A pulse-dose technology provides a means to deliver oxygen in fixed increments that correspond to the inhalation component of a patient's breathing cycle. In other words, it gives the patient a puff of oxygen right when he/she inhales. In doing so, pulse-dose technology prevents oxygen from being wasted. Pulse-dosed oxygen can be provided on a traditional oxygen tank by means of a conserving device, thus allowing the oxygen in the tank to last longer. Portable oxygen concentrators have a built-in conserving device, which increases the efficiency of an oxygen concentrator, and allows them to be much smaller and more portable than home concentrators.
    Some portable oxygen concentrators provide a continuous or pulse flow of oxygen. These include the SeQual Eclipse 3, DeVilbiss iGo, Invacare Solo2, Oxlife Independence, and Respironics SimplyGo.
    Other portable oxygen concentrator provide only pulse flow oxygen. These include the Respironics EverGo, Invacare XPO2, Inogen One G2, and Inova LifeChoice.
  • How Does An Oxygen Concentrator Work?
    An Oxygen Concentrator uses the ambient air (the air in the room), which is normally 80% nitrogen and only 20% Oxygen. The oxygen concentrator separates the two components by using zeolite granules to selectively absorb nitrogen from the compressed air. The compressor raises the air pressure to about 20-lbs per square inch (P.S.I). The compressed air is introduced into one of the canisters containing zeolite granules where nitrogen is selectively absorbed leaving the residual oxygen available for patient use. After about 20 seconds the supply of compressed air is automatically diverted to the second canister where the process is repeated enabling the output of oxygen continue uninterrupted. While the pressure in the second canister is at 20 P.S.I. the pressure in the first canister is reduced to zero. This allows nitrogen to be released from the zeolite and returned into the atmosphere. The zeolite is then regenerated and ready for the next cycle. By alternating the pressure in the two canisters so that first one and then the other is at 20 P.S.I., a constant supply of oxygen is produced while the zeolite is continually being regenerated. Individual units have an output of up to five liters per minute with an oxygen concentration of up to 95%.

Our Products and Services

  • Do you sell used for refurbished equipment?
    We occassionally have demo, used and refurbished equipment available at discounted prices. All such equipment will be clearly represented as such. For information about used equipment, please call us at 866-696-9558.
    Unless otherwise indicated, every piece of equipment we sell is brand new with the original manufacturer's warranty information.
  • How are you able to have such low prices compared to other companies?
    OxiMedical Respiratory believes that necessary healthcare equipment should not cost an arm and a leg. That's why we refuse to add 60% mark up to our products as is common in the medical industry. We work hard at keeping our overhead low and at obtaining the best prices for our products so that we can pass the savings along to our customers.
  • What is your exchange policy?
    Because we want you to be 100% satisfied with your products, you can return purchases made at up to 30 days after the item was purchased. Click here for more information about our Return Policy.

Payment Information

  • Do you accept Medicare?
    We are not able to file Medicare or insurance claims for you. 

    It can be difficult to navigate Medicare benefits for oxygen equipment. The Centers for Medicare & Medicaid Services has provided a booklet that explains the benefits for durable medical equipment (including oxygen equipment). We have provided the following as a summary of the information contained within this booklet. To see the complete booklet CLICK HERE.

    Durable Medical Equipment is medical equipment that is ordered by a doctor for use in the home. Durable medical equipment includes things like the following:

    • Home oxygen equipment
    • Hospital beds
    • Walkers
    • Wheelchairs
      Medicare does not purchase oxygen equipment. Medicare provides for oxygen equipment only on a rental basis.
    "Medicare pays for most durable medical equipment on a rental basis. Medicare only purchases inexpensive or routinely purchased items, such as canes, power wheelchairs, and, in rare cases, items that must be made specifically for you." (See page 8)

    "If you rent durable medical equipment and other devices, Medicare makes only monthly payments for use of the equipment. The rules for how long monthly payments continue vary based on the type of equipment." (See page 9)

    "If you rent oxygen equipment, Medicare will pay for up to 36 months of rental payments. After 36 months, your supplier is required to continue furnishing the equipment as long as it is medically necessary. After 36 months, Medicare will also pay for oxygen contents for any gaseous or liquid oxygen equipment you rent." (See page 10)
  • Do you provide financing?

    Yes! We offer financing through and independent leasing company. Please click here for details.

  • Is my credit card information secure through this site?
    YES! When you go to a page where ordering takes place, you will notice the URL line changes from to  That HTTPS indicates a secure page for your safety.
  • What forms of payment do you accept?
    For your convenience, we accept Visa, MasterCard, American Express, Discover, PayPal, e-Checks, and business and personal checks. Please note if paying by check, your order may be delayed for up 5-7 business days to allow the funds to clear.

Shipping Information

  • What is the cost of shipping?
    FREE gound shipping is available for orders delivered within the continental United States. Other charges may apply for overnight, bulk (oversized) shipping and shipping to Hawaii, Alaska, US Virgin Islands, and Puerto Rico.
  • When will my order arrive?
    The arrival date of your order will vary depending on the product and model you select and your place of residence. If in stock, most products are delivered to you in just three to four business days. Once your order has been processed, you will received an email with sales receipt and tracking information.
  • Will you ship products to my home?
    Yes, we will provide shipping to your home within the continental United States. Orders shipping to Hawaii, Alaska, and Puerto Rico will be handled on a case by case basis. Please contact our customer service for more details.