UltraGen CPAP Filters

UltraGen CPAP filters keep the air you breathe each night clean, and keep your machine running the way it should. If you use a PAP device, the filter is the small part that does a lot of quiet work — trapping dust, pollen, and airborne particles before they reach your airway, while protecting the internal motor from buildup that shortens a machine's life. Skipping replacements is one of the most common reasons therapy starts to feel less comfortable and machines wear out early.

This collection features AG Industries UltraGen replacement filters, designed to fit a wide range of Respironics RemStar and BiPAP models — including RemStar Pro and Plus (both C-Flex and non-C-Flex), RemStar Lite, RemStar Auto, BiPAP Plus, BiPAP Pro 2, and the newer gray-model BiPAP ST. Before ordering, check your machine's model against that list so you're matching the right filter to the right unit.

These are disposable, ultra-fine filters meant to be swapped out rather than washed. A good rule of thumb: replace disposable filters roughly every two weeks, or sooner if you live in a dusty environment, have pets, or notice the filter looking gray or discolored. Because they're inexpensive and sold in quantities that last, most people keep a small supply on hand so a fresh filter is always within reach.

Clean filters mean quieter operation, better airflow, and cleaner air delivered at the pressure your therapy calls for — which is exactly why regular replacement matters more than most users realize. Explore our full CPAP Supplies range to pair your filters with the tubing, masks, and accessories that keep your setup complete.