We have bought other filters and this one gives you 'bang for the buck'. I threw away the brush because it's too cumbersome and too much work to clean the nooks and crannies. Then you need to clean the brush. I bought cans of air like you use to clean your keyboard (I use the Impact Select Air Duster) and blew out the filter and the box that contains everything our Roomba collects. i do it outside It seems to me that all this takes longer than disposing of the garbage. There are cheaper ways to buy air canisters. For example Costco.