Do You Need a Prescription for CPAP?

Do You Need a Prescription for CPAP? If you’re new to the world of sleep apnea and CPAP therapy, one of the first things you might ask is…

Do I need a prescription for a CPAP machine in the United States?

The short answer is yes, but there are some important details to understand — and even a few exceptions to know about.

In this guide, I’ll break down exactly why a prescription is required, what it covers, and how to get one quickly and affordably if you don’t already have one. I’ll also share a few personal insights since I’ve been down this road myself after being diagnosed with severe obstructive sleep apnea.

I remember feeling overwhelmed at first, but once I understood the process, it got a lot easier.

Why Do You Need a Prescription for a CPAP Machine in?

CPAP machines are classified as Class II medical devices by the FDA. That means they require a prescription to ensure they’re used safely and effectively.

This regulation is meant to protect you because using the wrong pressure settings or mask type could make your sleep apnea worse — or even cause new problems.

But the prescription doesn’t just cover the machine. It also includes your recommended pressure settings (which are typically based on the results of your sleep study) and sometimes even a specific mask type.

What Products Require a Prescription?

Here’s what you’ll need a prescription for in the U.S.:

• CPAP, APAP, or BiPAP machines
• CPAP masks (in many cases, especially if ordered directly from the manufacturer)
• Humidifiers that are integrated with your machine
• CPAP supplies like heated tubing (depending on the retailer)

However, some basic CPAP accessories — like mask liners, cleaning supplies, or generic hoses — can usually be purchased without a prescription.

How to Get a CPAP Prescription

If you’ve already had a sleep study (either at a sleep lab or via an at-home test), your doctor should provide you with a prescription. This script usually states:

• Your official diagnosis (like obstructive sleep apnea)
• The type of machine recommended (CPAP, APAP, BiPAP)
• Your pressure settings (if fixed pressure is recommended)
• Optional: Preferred mask type (nasal, full face, nasal pillow)

What if You Don’t Have a Prescription Yet?

No prescription? No problem — you have a few options:

1. Schedule a Sleep Study

This is the traditional route. You’ll either go to a sleep center for an in-lab polysomnography, or you can request an at-home sleep apnea test. Many companies now offer affordable home tests, and they often come bundled with a prescription if you’re diagnosed.

2. Telemedicine Services

Telehealth providers like CPAP.com and Lofta can connect you with a licensed provider who will review your symptoms and order a home sleep test if needed. If your results show sleep apnea, they’ll issue a prescription — usually within days.

3. Existing Medical Records

If you were diagnosed with sleep apnea in the past, your primary care doctor or sleep specialist can often write you a new prescription without requiring another test. This is a great option if you’ve lost your old script but still need new equipment.

Can You Buy a CPAP Machine Without a Prescription?

This is where things get a little tricky. In the U.S., legitimate retailers will almost always ask for a prescription before selling you a CPAP machine.

This applies to both online sellers and physical stores.

However, there are some gray-market options (like eBay or Facebook Marketplace) where used CPAP machines are sold without a prescription. I strongly advise against this for several reasons:

• Sanitation risks — You don’t know how well the machine was cleaned.
• Wrong settings — Machines might still have the previous user’s pressure programmed.
• No warranty or support — You’re on your own if the machine breaks.
• Potential illegality — Selling prescription medical devices without proper authorization can violate both federal and state laws.

If cost is your concern, there are better and safer options — including buying refurbished machines from reputable suppliers. These machines still require a prescription, but they cost far less than new ones and are properly sanitized and tested.

Does Insurance Cover CPAP Prescriptions and Machines?

In most cases, yes. If your doctor orders a CPAP machine after a sleep apnea diagnosis, your health insurance (including Medicare and Medicaid) will usually cover some or all of the cost — but only if you have a valid prescription.

However, some people choose to skip insurance altogether and buy their machine out of pocket. This is especially common for folks with high deductibles or those who want to avoid the compliance monitoring required by many insurers. (I’ve been through this, and honestly, it’s a hassle — but it’s a personal decision.)

How Long Is a CPAP Prescription Valid?

This depends on your state and the specific supplier, but in most cases:

• A diagnosis of obstructive sleep apnea is considered lifelong.
• If your prescription says “lifetime need” or “99-month supply,” you typically won’t need a new script for replacement machines or supplies.

If your prescription was written more than 5-7 years ago, some retailers might ask for an updated one — especially if you’re switching brands or ordering a newer type of machine.

What About Buying CPAP Supplies?

Here’s the good news: Most basic supplies can be purchased without a prescription. This includes:

• Replacement cushions and seals
• Filters
• Tubing (non-heated)
• Mask cleaning wipes or sprays

However, some complete masks (especially ones sold directly by manufacturers like ResMed or Philips) might still require a prescription, so always check the retailer’s policy.

Quick Recap: Prescription Rules for CPAP in the USA

Item	Prescription Required?
CPAP, APAP, BiPAP Machine	✅ Yes
CPAP Mask	✅ Sometimes
Replacement Parts (cushions, filters)	❌ No
Cleaning Supplies	❌ No
Humidifier	✅ Yes (if integrated)

Final Thoughts – My Experience with Getting a CPAP Prescription

When I was first diagnosed with severe sleep apnea, I remember stressing over how to get my CPAP prescription. My doctor handled it after my sleep study, but when I needed to replace my machine years later, I couldn’t find my original script.

That’s when I discovered online telehealth services — and honestly, they were a game-changer. Within a few days, I had a new prescription, and I was able to order my new machine without hassle. If you’re in a hurry, I highly recommend looking into these services.