This filter keeps dust, pollen and mold out of the house, preventing secondary air pollution. The vacuum cleaner filter is made of cotton + filter + rubber material and is durable and can be used for a long time. Washable HEPA filter: It is cleaned once a month and replaced every 3-6 months to keep the vacuum cleaner in good working condition. Our filters are made of high-quality. Strength and environmentally friendly material. The vacuum cleaner filter is durable and of good quality. Attractive and durable. It is a washable pre-motor filter suitable for Dyson vacuum cleaners. Suitable for Dyson vacuum cleaner models: DC30 DC31 DC34 DC35 DC44 DC45 DC56. Product packaging: 160*90mm Product color: purple Delivery quantity: one piece Note: The data is all manually measured, please allow an error of 1-3 cm. Due to the difference in light and display, there will be a certain color difference, the actual item received shall prevail.