The CAN-LITE anti-odor filters are designed to withstand the absorption of odors that are created in the room thanks to their 5 cm active carbon of excellent quality and durability. CAN-LITE filters hardly require maintenance. You simply have to place the jacket so that the charcoal is more protected and thus has a durability of between 12 to 14 months , depending on where the filter is placed and what the room environment is like.