If your vacuum cleaner has lost suction capacity, it is possible that the filter of the vacuum cleaner is blocked and can no longer function properly. If the filter is damaged or torn, then you need to replace it with a new one. This filter is made of foam rubber and is washable. By regularly changing and cleaning the engine filter, you make sure that the vacuum cleaner works in the best way. For optimal performance of your appliance, we recommend you replace filters at least twice a year, or when they become visibly soiled. Check compatibility before purchase.