ADVANTAGES OF REUSABLE FILTER SLOTS - Reusable and easy to replace. They help make filters for your machine more cost-effective and can reduce plastic waste, supporting environmental sustainability. FOAM POLLEN & ULTRA FINE - The foam filter helps capture larger particulate matter. The ultra-fine filter helps trap fine particles. Using them together helps provide cleaner air. FOR A HEALTHIER ENVIRONMENT - This kit is designed to help provide cleaner air for you and your family, supporting respiratory health. Reusable Filter Slots should be replaced every 3 to 6 months. Disposable Ultra-Fine Filters should be replaced approximately every 2 weeks. Specifications: Compatible models: For use with DS500 / 700, etc. Color: Blue + White Material: ABS + Cotton Size: 5.7 x 2.5 cm Package Contents: 6 x Reusable Filter Slots 6 x Disposable Ultra-Fine Filters Note: The package includes only the items listed above. Other products are not included. Lighting and display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.