General description Set of 8 HEPA filters designed for the Firefix 963 Ash Vac. These filters enhance the vacuum cleaner's suction capacity by filtering out the smallest particles from the exhaust air, making them ideal for allergy sufferers. The pleated design provides extra protection against dust, and the filters have a larger surface area compared to standard filters. They can be washed and reused multiple times, ensuring longevity and efficiency. Technical specifications External diameter: 16.1 cm Internal diameter: 11.4 cm Height: 8.8 cm Material: rubber / microfleece Weight per filter: 164 g Form: round Colour: black / white Washable Compatibility and accessories Compatible with Firefix 963 Replacement for: 760023, 7906401704, 8190.98, 400563 Usage It is recommended to replace the filters every 3-6 months or when they no longer clean effectively. Always ensure that the ash has cooled down to a temperature below 40 degrees before starting to vacuum.