<p>This product is not produced by the original manufacturer. It is a replacement that is perfectly compatible with this model and is produced by the accessories manufacturer. It is not an original product produced by the brand factory.</p> <p>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.</p> <p>FOAM POLLEN \u0026 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.</p> <p> 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.</p> <p>Reusable Filter Slot Replace Once every 3-6 months,Disposable Ultra-Fine Filters Replace every 2 weeks.</p> <p>Specifications:</p> <p>Applicable models: For DS500 \/ 700, etc</p> <p>Colour: blue+white</p> <p>Material: ABS+cotton</p> <p>Size: 5.7 x 2.5cm</p> <p>Package Contents:</p> <p>6 x Reusable Filter Slot Replace</p> <p>6 x Disposable Ultra Fine Filters</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection 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.</p>