MOVA Dust Box Filter*2 for V50 Ultra/ Mobius 60MOVA Dust Box Filter 2 The filter is made of high quality materials that effectively capture 99% of dust, particles, and pet hair. To maintain peak performance, replace the filter and brush kit every 23 months, depending on your usage frequency. Routine Maintenance: Remove the dust box filter, and then gently tap the basket of the filter to remove the dirt. Rinse the dust box and filter with water and dry them completely before reinstalling. Note: Do