Enter Our Mother's Day Giveaway! Win a Teeth Whitening Kit or Quip Toothbrush


How Often Should CPAP Filters Be Changed?

CPAP therapy is a treatment for sleep apnea, a sleep disorder that causes breathing to stop and start during sleep. The therapy uses a machine that blows air through a mask, which is worn over the nose or mouth. The machine’s filters play an important role in keeping the air clean and free from contaminants that can cause health problems. In this article, we will discuss how often CPAP filters should be changed, the factors that affect their lifespan, and how to change them.

How Often Should CPAP Filters Be Changed?

The manufacturer’s recommendations for changing CPAP filters vary depending on the type of filter and the machine model. Most recommend changing disposable filters every 1-3 months, while reusable filters can last up to 6 months or longer. It’s important to check the owner’s manual for the specific recommendations for your machine.

Factors That Affect Filter Lifespan


The environment in which the CPAP machine is used can affect the lifespan of the filters. Dust, pet dander, and other pollutants in the air can cause the filters to become clogged more quickly. If you live in an area with high levels of pollution, you may need to change your filters more frequently.

Skin oils and other contaminants

When wearing a CPAP mask, skin oils and other contaminants can accumulate on the filters, reducing their effectiveness.

Usage frequency

The more often the machine is used, the more often the filters will need to be changed.

Types of CPAP Filters

Disposable filters

Disposable filters are designed to be thrown away after a certain period of time. They are the most common type of filter and are typically made of foam or fiber.

Reusable filters

Reusable filters can be washed and used again. They are typically made of a durable material such as metal mesh or a washable foam.

Comparison of filter types

Disposable filters are convenient and easy to use, but they can be more expensive over time. Reusable filters are more cost-effective, but they require more maintenance and cleaning.

How to Change CPAP Filters

The process of changing CPAP filters varies depending on the machine model. The owner’s manual should provide detailed instructions on how to change the filters.

Tips for proper filter replacement

It’s important to change the filters regularly and as recommended by the manufacturer. When changing filters, be sure to clean the filter compartment thoroughly to remove any dust or debris. It’s also a good idea to wash your reusable filters with mild soap and water.


Regularly changing CPAP filters is an important part of maintaining the machine and ensuring that the air that is being breathed is clean. The manufacturer’s recommendations for filter replacement should be followed, but additional factors such as environment, skin oils and other contaminants, and usage frequency should also be considered.

It’s important to know the type of filter you have and how to change it properly. It’s also important to consider the cost-effectiveness of the filter you choose.

Additional resources for more information on CPAP filters and maintenance can be found online or by consulting a healthcare professional.

Contact Family Tree Dental To Learn About Alternatives to CPAP Therapy

CPAP machines can be an effective treatment for sleep apnea, but they are not the only option. At Family Tree Dental, we offer a range of alternatives to CPAP therapy that can help you get an uninterrupted night’s rest. An oral appliance may be a great option for you if your CPAP machine is getting on your last nerve. If you’re located in the Ohio Valley area, contact Family Tree Dental today to learn more about dental oral appliances for helping sleep apnea.