General description vhbw offers a set of 5 flat-fold/wet/HEPA filters designed for compatibility with the 3M Mobile Extraction System No. 64408 vacuum cleaner. These filters are engineered to enhance suction capacity and effectively filter out the smallest particles, including dust, allergens, and animal hairs, making them ideal for allergy sufferers. With a larger filter surface area compared to standard filters, they ensure cleaner exhaust air and improved air quality. Technical specifications Filter class: L Dimensions (L x W x H): 25.6 x 19 x 6.7 cm Material: microfleece / plastic Weight per filter: 509 g Form: device-specific Colour: black / white / grey Washable: Yes Compatibility and accessories Compatible with 3M Mobile Extraction System No. 64408 Replacement for: 631934000, 338634, 66370133, 35301000, 2607432015, FK 4300, FKP 4300, 416038, 416069, 4932373623, 4002395351510 Usage To maintain optimal performance, it is recommended to replace the filters every 3-6 months or when