If your carbon filter has become clogged or ineffective, you can reactivate it by following these steps: 1. Remove the filter from your appliance. 2. Place the filter in a bowl of warm water. 3. Add a teaspoon of baking soda to the water. 4. Stir the mixture until the baking soda is dissolved. 5. Allow the filter to soak for 30 minutes. 6. Rinse the filter with clean water. 7. Replace the filter in your appliance and resume normal use.