Description:<br> This Hepa Filter is fit for Electrolux，Boldio，Excellio，Oxygen，Oxy3-Systems，Praxio，Powersystem，Smartvac，Ultra Silencer Series，FC8031 Series. Filters maintain Nepa's cleaning performance while reducing infiltration of dust， pollen and other allergens into the air you breathe. For best results， filters should be replaced every 2 - 3 months.  Fit Cleaner: Electrolux，Boldio，Excellio，Oxygen，Oxy3-Systems，Praxio，Powersystem，Smartvac，Ultra Silencer Series，FC8031 Series.  Specification: Model:H12 Material:plastic Color:blue Size: 150 mm Lengthx 120mm Width  x 25mm(Height)  Package Included: 1 X Blue Filter