Clogged filters reduce the suction power of your vacuum cleaner. By regularly cleaning and replacing the filters, you can maintain optimal vacuum performance. The HEPA 12 filter traps even the finest particles, such as pollen, spores, mite droppings, and allergens. With a cleaning efficiency of 99.5%, the risk of allergic reactions is reduced. In a dust-free environment, all members of your family can breathe more easily. The high-quality material of the original filters not only ensures high filtration efficiency and maximum dust retention, but also allows for a strong airflow and high suction power. We recommend washing the filter every time it becomes visibly dirty. Clean it with a brush under running water and let it dry before using it again. All filters should be replaced at least twice a year. Fits the following models: New UltraSilencer USENERGY, New UltraSilencer USORIGIN, New UltraSilencer USGREEN, Ergospace ZE341B, UltraPerformer ZUP3830/ZUP3810/ZUPG3801, Classic Silence ZCS2000.