About this article 1. ODOR FREE: Housewares Solutions Replacement Filters absorb and capture odors in compost bins and keep your kitchen fresh and healthy. Now you can collect kitchen scraps for your compost pile without causing odors. These activated carbon filters offer the best solution to naturally and effectively trap odors from leftover food inside. 2. CONTAINS 12 REPLACEMENT FILTERS - The pack contains 12 round filters, meaning you can enjoy odor-free composting for over a year. Round charcoal filters are approximately 16cm in diameter and can be cut to fit different compost containers Filters contain charcoal, please do not flush. 3. ECO-FRIENDLY CHARCOAL FILTER - Compatible with most stainless steel compost bins. Made from activated carbon which provides good absorption and filtration and helps eliminate odors effectively. 4. MORE PEACE OF MIND: Our activated carbon filters absorb odors provide extra safety. Sufficient ventilation is essential for the decomposition process. That's why these filters are designed to be thick enough to allow enough ventilation to provide fresh air to the decomposed compost. 5. Easy to use and replace - you can cut it to meet your different needs. It is recommended to change the filter every 2-3 months for proper odor control.