We recommend that you clean iRobot Roomba Spare parts every 1-3 uses. (depending upon the amount of dirt and debris in your home). It's best to replace your spare parts every 1 to 2 months to keep your home robot operating at peak performance.

• The Roomba 700 Series dual HEPA filters capture dust particles as fine as 0.3 microns, limiting their recirculation into the air. Replace your filters every 2-3 months for peak cleaning performance
• Filters maintain Roomba's cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe.
• Replacement filters for iRobot Roomba 700 Series and Roomba Professional Series Robots.
• How to clean the brushes:1.Remove brush guard by lifting both yellow tabs.2.Remove and clean under the yellow brush caps and remove hair and debris from metal brush cap shafts.
• Package includes: 5x Flexible Beater Brushes 5 x Bristle Brush

The Roomba 700 Series dual HEPA filters capture dust particles as fine as 0.3 microns, limiting their recirculation into the air. Replace your filters every 2-3 months for peak cleaning performanceLOVE(TM)