About CPAP & Respiratory Filters
Filters are the smallest parts of a CPAP or respiratory device, and among the most frequently replaced. This collection covers disposable and reusable CPAP inlet filters, bacterial and viral filters, and other small replacement parts for sleep therapy and respiratory equipment, with products from Fisher & Paykel, Sunset and Spirit Medical. It is one collection within Respiratory Supplies, next to CPAP machines, masks and headgear, and nebulizers.
Everything here depends on the device model. Filters are cut to fit a particular filter door or inlet, so a filter for one machine rarely fits another. Disposable filters are usually white or fine-fiber and replaced on a regular schedule, while reusable filters are often gray foam and washed between replacements. Follow the replacement interval in your device manual.
Count is the other attribute to check. Filters are sold in packs of different sizes, and a larger pack covers a longer replacement period. When reordering, match the part or REF number printed on the filter packaging or listed in your device manual. That number is more reliable than the product photo, because many filters look alike but differ slightly in size and material.
Frequently asked questions
How do I find the right filter for my CPAP machine?
Check the brand and model on your machine's label, then choose a filter listed for that model. Look at your current filter too: disposable ultra-fine filters and reusable foam filters are often used together in the same machine. The device manual lists the correct part number for each filter slot.
Are CPAP filters covered by insurance?
CPAP filters may be eligible for coverage on a replacement schedule, typically under HCPCS codes A7038 for disposable filters and A7039 for non-disposable filters. Those codes are shown for reference only. Coverage and how often filters can be replaced depend on your payer and plan, and a prescription on file is often required.
How do I reorder the same filters?
Use the part or REF number from your filter packaging or device manual and search for it on our site. Check the count per pack, since filters are sold in several pack sizes. Keeping that number on file makes it easy to reorder the identical filter at each replacement interval.