Composter Charcoal Filters | 3-PackPart of what makes our compost bin so great is the charcoal filter that is placed in the lid. These filters last about 2 months before they need to be replaced. Now, you can get replacements directly from Bamboozle Home. Comes with 3 charcoal compost filters for your Bamboozle compost bin. Lasts 2 months before needing to be replaced. Filters are dishwasher safe.