Binchotan Carbon + Activated Carbon Powerful Deodorization Jelly charcoal becomes smaller, so you will be disappointed when to replace. Mineral antimicrobial power (with mineral antimicrobial agent) Mineral deodorizer is effective on raw odors. Fits refrigerators up to 450L Usage time: Usually about 5 to 6 months (varies depending on the type of refrigerator. )