UV comb sterilizers for cats are designed to eliminate bacteria, viruses, and other microorganisms from your cat's coat, while also removing loose hair and preventing tangles. 

1. Begin by turning on the device and allowing it to warm up for a few seconds. 

2. Using the UV comb sterilizer, brush your cat's coat in the direction of hair growth. Make sure the comb comes into contact with the skin to ensure maximum sterilization.

3. Pay extra attention to areas where your cat is prone to matting or tangling, such as behind the ears and under the legs.

4. Once you've finished brushing your cat's coat, turn off the UV comb sterilizer and clean the comb with a soft, damp cloth.