Clean and Fresh Kitchen with Simfer 51389 Carbon Filter Set Developed with active carbon technology, this filter set effectively traps bad odors, steam, and grease that emerge during cooking. Thanks to its advanced porous structure, it absorbs odor molecules, purifying the ambient air. Durable and Long-Lasting Design Its non-toxic special carbon structure offers high performance under different humidity and temperature conditions. You can achieve maximum efficiency by replacing it every 6-12 months according to manufacturer recommendations. Compatible Dimensions and Easy Installation Inner tab diameter: 9 mm - 15.8 mm. Inner diameter: 160.8 mm – it is recommended to check the measurements before purchasing. Compatible For Simfer Brand Hood and Aspirator Models This product is fully compatible with many Simfer brand models.