Usage Tips:Description: brand and high quality Features: Made of materials, more durable and stable to use. Exquisite and delicate, highly matched with equipment. Filter can reduce dust, pollen and other allergens from infiltrating into your breathing air. It can purifying indoor air, preventing it from being polluted, and preventing secondary pollution. Washable and reusable. As part of normal maintenance, it can be easily removed and replaced. It is recommended that you replace the spare parts every 3 to 6 months depending on the frequency of use to keep the machine running at for peak performance. Filter Cartridge only, other accessories demo in the picture is not included! Specifications: Item Type: Filter Cartridge Material: Plastic Size: 11x11.5cm/4.33x4.52inch Color: Black+White Compatible Models: for DCV580 DCV581H Quantity: 1 Pc Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Filter Cartridge