General description vhbw offers a set of 2 HEPA filters designed for compatibility with Shark vacuum cleaners, including models WV251, WV250, WV221, and WV220. These filters are engineered to enhance suction capacity by filtering out the smallest particles from the vacuum cleaner's exhaust air, making them particularly beneficial for allergy sufferers. With a larger filter surface area than standard filters, they effectively capture dust, micro-particles, allergens, and other impurities. Technical specifications Filter class: H11 Dimensions (L x W x H): 5.5 x 4.8 x 4.8 cm Material: ABS (acrylonitrile butadiene styrene), plastic, paper Weight per filter: 17 g Colour: orange, black, white Washable Exchange cycle: every 2-3 months Compatibility and accessories Compatible with Shark vacuum cleaner models: WV251, WV250, WV221, WV220 Replacement for XHFWV200 Usage To maintain optimal performance, it is recommended to replace the filters every 2-3 months or when they no longer clean