Most CPAP and BiPAP machines have two filter types. The coarse, often dark filter is the first line of defence and blocks fluff, hairs and other large particles. The often thinner, lighter coloured fine filters tackle smaller particles including dust, pollen and so on. Fine filters should be replaced approximately every 2-4 weeks, depending on the air quality where you live. Coarse filters may be washable and should be rinsed or replaced at least every month.
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Filters are an essential component of CPAP machines; their primary function is to purify the air. CPAP filters are designed to filter out airborne particles and contaminants from the surrounding air, ensuring that the air delivered to the user is clean and free of dust, pollen, pet dander, mould spores, and other allergens.
Disposable filters: These filters are made of thin, fibrous material and are intended for single use. They are usually replaced once a month, depending on the manufacturer’s recommendations.
Non-disposable filters: These filters are made of more robust material and are designed to be washed and reused. They often have a longer lifespan and need to be cleaned regularly.
There are two types of filters, reusable and non-reusable. Reusable filters are typically made of foam and can be washed and reused.
Using your machine without a filter reduces the effectiveness of your therapy as there is no filter to prevent dirt and bacteria from reaching your airflow. It will also shorten the lifespan of your machine.
You should check your filters regularly to see if they need replacing. An old filter that needs replacing will appear discoloured and dirty; you can open your filter compartment to check.
