Filter Kits for Philips Respironics for dreamstation Include 2 Reusable Filters & 6 Disposable Ultra-Fine Filters ADVANTAGES OF REUSABLE FILTER SLOTS - Reusable and easy to replace. They make filters for your machine more cost-effective and can reduce plastic pollution to be friendly to environment._x000D_ FOAM POLLEN & ULTRA FINE - The foam version is to block particulate matter. The ultra fine version is to block fine particles. Use them together to provide the cleanest air. FOR HEALTHIER LIFE - Our kit is designed so as to provide you and your loved ones with the cleanest air to maintain the health of your lungs and keep the potential diseases from you. colour:Blue_x000D_ Material:filter sponge Package Contents:_x000D_ 6 x Disposable Ultra Fine Filters_x000D_ 2 x Pollen Filters Only the above package content, other products are not included._x000D_ Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_