Keeping your CPAP machine clean is super important, and these Resplabs filters make it easy and affordable. This pack comes with 60 disposable filters that are perfectly compatible with ResMed AirSense 10, AirCurve 10, and S9 series machines. They feature dual filtration with both standard and ultra-fine options to effectively trap dust, pollen, and other particles from entering your airway during therapy. Replacing them is simple - just locate the filter compartment on your machine (usually at the back or side), remove the old filter, and snap the new one in place. For best performance and hygiene, it's recommended to replace standard filters every month and ultra-fine filters every two months, or sooner if they look dirty. Regular filter changes not only improve the air quality you breathe but also help your CPAP machine run more efficiently and last longer. Clean filters mean fresher air, reduced allergens, and better overall therapy comfort. With 60 filters in this pack, you're set for a long time, making it a cost-effective way to maintain your sleep apnea equipment properly.