If you are using Bob regularly, it is recommended that you clean his HEPA filter every week, and that you replace it every 6 months. Every Bob comes with one replacement HEPA filter, but you may purchase additional filters at the bObsweep Online Store.
Bob’s filter is located inside the roof of his dustbin.
Use the cleaning tool to clear away dust and dirt collected on the filter layers.
When done, place the thinner electrostatic filter in first, and the thicker mesh filter on top.
Then, slide the filter frame back into the dustbin's ceiling.
Lastly, slide the dustbin back into Bob.