You can determine if your Zephyr hood uses baffle filters or mesh filters and replace them accordingly. Most filters can be placed in the dishwasher using non-phosphate detergent on low heat or short cycle. Filters can also be washed by hand with warm water and non-phosphate degreasing detergent like Dawn. Soak filter for 1-2 hours and rinse with water, then air dry completely before reinstalling and using the range hood.