How Often Should You Replace Your CPAP Supplies?

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When using a CPAP system, it is important to know how often you should change or replace your CPAP supplies.

It’s not just the mask or CPAP machine itself that needs to be replaced – many elements of your device can be worn down over time, making them less effective.

Replace Your CPAP Supplies

The following information will give you the information you need to keep your equipment up to date and safe to use.


A mask should be replaced every 90 days to reduce the risk of developing skin irritation.

Skin irritation can occur due to the skin’s natural secretions of oils, bacteria and acids, all of which build up on the mask material.

The build up of these elements can weaken and soften the mask and therefore create symptoms on the skin such as redness, blisters and general soreness.

A mask that is too soft and pliable can also become loose, meaning it needs tightening more frequently and can dig into parts of the face, causing discomfort.

All of this will interfere with sleep and make it difficult to relax at night. Additionally, a set of nasal pillows that touch the nose will need replacing every 2 weeks.


Replacing your white micro contaminate filter every month will reduce the likelihood of inhaling contaminants such as spores or pollen.

If you suffer with allergies such as bad hay fever, it may be advisable to replace the filters every 2 weeks.


Hoses assist in deterring mold from growing out of micro contaminants. The hose is persistently exposed to damp and moist conditions, which provides a breeding ground for bacteria.

It can be difficult to clean due to the number of ridges, so it needs to be replaced every 90 days for hygiene purposes. Failing to do so can cause serious respiratory infections, mucus build up, and nasal congestion.


Humidifiers prevent dehydration of the nasal mucus and lungs. A lack of moisture can affect the lungs’ ability to expand and contract.

It can also cause a severely dry mouth and throat which can cause discomfort during the night and first thing in the morning after waking. A humidifier needs to be replaced every 6 months to ensure its efficiency and cleanliness.

Cushion/ Pillows

The cushion on a CPAP mask is used in order to allow for a comfortable sleep at night. It can wear down and lose its seal over time due to friction, bacteria, and facial oils.

A cushion that has become loose or dismantled can cause air to leak. This weakens the effectiveness of the entire mask. A cushion should be replaced every month to ensure the best quality seal and overall hygiene.


Much like your other CPAP supplies, a chin strap or head gear can lose its elasticity over time, rendering it ineffective for the purposes of securing the mask.

You may notice that your head gear is loose if the mask slips off easily or doesn’t stay put when you roll over in bed. For this reason, every six months the headgear should be replaced.

Water Chamber

The water chamber is an important element of the CPAP mask. It is part of the humidifying system and needs to be replaced just like any of your other CPAP supplies.

If you don’t, then it will fail to provide sufficient moisture and will therefore cause dehydration and respiratory distress.

Your water chamber needs replacing every six months to ensure it remains functional for the purpose of hydrating the lungs and respiratory system.

CPAP Machine

A CPAP machine, which is the primary element of the overall device, has a lifespan of 5-7 years, but to be safe it is a good idea to replace the machine every 3-5 years.

This ensures that you’ll always have a machine that is in full working order. A backup is also advisable to keep amongst your CPAP supplies in case the machine should fail suddenly.

If you currently use a CPAP mask and need more information on CPAP supplies available to you, get in touch with us today. We’re offer convenient offices in just about every neighborhood, & are available to assist you with all your needs either in person or by mail.

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