Genuine Hygiene filter for ELECTROLUX upright vacuum cleaner Smartvac Ultra Z 4870. ELECTROLUX has imagined this high quality filter to optimise your upright vacuum cleaner performance. This Hygiene filter filters and retains the ultimate dust before leaving your vacuum cleaner, offering you a healthier home. The high grade of material used for this filter provides your Smartvac Ultra with high airflow and strong suction power, as well as a high filtration level and maximum dust retention. To ensure optimum performance of your Smartvac Ultra, we recommend you to replace this filter regularly, at least twice a year or with every 6th vacuum bag change. Use of non genuine filters may adversely affect your upright vacuum cleaner performance. This pack contains one Hygiene filter. Hygiene filter reference: EF 81.