Have dust-free air in your home with this replacement filter, which captures even the very finest particles e. g. pollen, mould spores, dust mite faeces and allergens. The exhaust filter purifies the air leaving the vacuum cleaner reducing the risk of allergic reactions. This filter fits the following cleaners: CYCLONE POWER MAX Z5505, Z5506, Z5510, CYCLONE POWER ULTIMA Z5605AZ. For optimum performance of your vacuum cleaner, we recommend you change paper bags regularly and replace all filters at least twice a year or when they become visibly soiled.