Does Medicare Cover Humidifiers?

Medicare will only cover an oxygen humidifier if used with another type of durable medical equipment (DME), like a CPAP machine, and is deemed medically necessary. In those circumstances, Medicare will cover 80 percent of the cost. Humidifiers or similar devices for any other purpose will not be covered.

Christian Simmons, writer and researcher for RetireGuide
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    Christian Simmons

    Christian Simmons

    Financial Writer

    Christian Simmons is a writer for RetireGuide and a member of the Association for Financial Counseling & Planning Education (AFCPE®). He covers Medicare and important retirement topics. Christian is a former winner of a Florida Society of News Editors journalism contest and has written professionally since 2016.

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    Lee Williams

    Senior Financial Editor

    Lee Williams is a professional writer, editor and content strategist with 10 years of professional experience working for global and nationally recognized brands. He has contributed to Forbes, The Huffington Post, SUCCESS Magazine,, Electric Literature and The Wall Street Journal. His career also includes ghostwriting for Fortune 500 CEOs and published authors.

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    Aflak Chowdhury

    Aflak Chowdhury

    Medicare Expert

    Aflak Chowdhury is a Medicare expert and independent insurance broker specializing in group health insurance. He has worked for major providers including Humana and Principal Financial Group and today works mainly in the small group market.

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  • Published: June 10, 2021
  • Updated: May 8, 2023
  • 3 min read time
  • This page features 10 Cited Research Articles
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A licensed insurance professional reviewed this page for accuracy and compliance with the CMS Medicare Communications and Marketing Guidelines (MCMGs) and Medicare Advantage (MA/MAPD) and/or Medicare Prescription Drug Plans (PDP) carriers’ guidelines.

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APA Simmons, C. (2023, May 8). Does Medicare Cover Humidifiers? Retrieved June 6, 2023, from

MLA Simmons, Christian. "Does Medicare Cover Humidifiers?", 8 May 2023,

Chicago Simmons, Christian. "Does Medicare Cover Humidifiers?" Last modified May 8, 2023.

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Humidifiers Coverage at a Glance
Medicare PlanCoverage for Humidifiers
Part A (Inpatient) N/A
Part B (Outpatient) Covers 80% of costs for medically necessary humidifiers in eligible circumstances after you have reached your Part B deductible.
Part C (Medicare Advantage) Coverage mirrors Part B. Select plans may offer additional benefits.
Part D (Prescription Drugs) N/A
Supplemental InsuranceCan help cover out-of-pocket humidifier costs in specific cases. Coverage varies by plan.

When Will Medicare Cover Humidifiers?

Medicare primarily covers retirement age individuals who are 65 and older and younger people with disabilities; however, Medicare Parts A and Part B – mutually known as Original Medicare – does not cover all medical costs.

Medicare Part B will cover an oxygen humidifier only if your conditions and treatment are medically necessary when combined with another device you are using. This includes CPAP machines, respiratory assist devices and oxygen equipment.

A humidifier that you want for environmental control, comfort or any non-medical reason will not be covered by Medicare.

Similar Items Medicare Will Not Cover
  • Air purifiers
  • Dehumidifiers
  • Electric air cleaners
  • Humidifiers for environmental control
  • Room heaters

According to the University of Michigan, a CPAP machine can help someone with sleep apnea breathe more easily while they are asleep. Still, it can also cause throat irritation, nasal irritation and difficulty breathing through your nose. A humidifier paired with a CPAP machine, however, can alleviate those breathing issues.

What Humidifier Equipment Does Medicare Pay For?

Medicare will cover 80 percent of the cost for a humidifier that is deemed medically necessary. If you are using the humidifier with an oxygen machine, the monthly fee will include both sets of equipment.

If you are using a CPAP machine or other similar device and are struggling with symptoms that an oxygen humidifier could alleviate, check with your doctor or healthcare provider to determine if one could be deemed medically necessary.

A doctor may order this with your equipment automatically. A humidifier that you want for any other purpose will most likely not be covered by Medicare.

Medicare Eligibility for Humidifier Coverage

Durable medical equipment is designed to treat health issues. There is a chance that you could get Medicare to cover a humidifier for a different reason if you could prove that it is a medical necessity.

A Medicare Advantage plan, which offers everything included in Original Medicare and additional benefits, could provide expanded coverage for a humidifier. Medicare supplemental insurance could also help with some of the costs if you qualify for an oxygen humidifier.

If you are not currently on any of these plans, make sure to check your eligibility for Medicare as well as things to consider before you enroll.

New to Medicare Checklist

What Are Humidifiers Used For?

A humidifier generates moisture in the air of your room, which can alleviate throat or nose irritation and dryness. Humidifiers are beneficial if you are sick since they can reduce your symptoms, nasal passage swelling and help you to breath more easily. An oxygen humidifier will moisturize the oxygen that you are receiving to prevent irritating side effects.

Humidifiers are often used when it’s cold outside and you have the heat on to keep the air in your home from becoming too dry. According to Consumer Reports, cool mist humidifiers are the most common type sold.

Last Modified: May 8, 2023

10 Cited Research Articles

  1. U.S. Centers for Medicare & Medicaid Services. (2022, January). Your Medicare Benefits. Retrieved from
  2. U.S. Environmental Protection Agency. (1991, February). Use and Care of Home Humidifiers. Retrieved from
  3. U.S. National Library of Medicine. (2017, June). Humidifiers for oxygen therapy: what risk for reusable and disposable devices? Retrieved from
  4. Consumer Reports. (2020, February 3). Humidifier Buying Guide. Retrieved from,Types%20of%20Humidifiers,house%20humidifiers%20at%20this%20time
  5. U.S. Food & Drug Administration. (2020, July 10). Respiratory Assist Devices EUAs. Retrieved from
  6. University of Michigan Medicine. (2020, October 26). Continuous Positive Airway Pressure (CPAP) Therapy for Obstructive Sleep Apnea. Retrieved from
  7. U.S. National Library of Medicine. (2021, May 4). Humidifiers and health. Retrieved from
  8. American Sleep Apnea Association. (n.d.). Here is a list of common complaints from CPAP users, do any of these sound familiar. Retrieved from
  9. U.S. Centers for Medicare & Medicaid Services. (n.d.). Humidifiers. Retrieved from
  10. U.S. Centers for Medicare & Medicaid Services. (n.d.) National Coverage Determination for Durable Medical Equipment Reference List. Retrieved from