1. Filter dust, filter exhaust gas, protect vacuum cleaner motor 2. Filter smoke particles, pollen, dust and other particles 3. The filter is crucial to the suction power of the vacuum cleaner. 4. The filter must be cleaned every 2 weeks and replaced every 6 months 5. Suitable for Shaker WS620 WS630 WS632 WS632BLBRN WS632GDBRN WS632DNBRN WS632PKBRN WS632RGBRN
