I am a highly skilled and experienced home service professional. I recently completed an annual furnace inspection for a client. The system was working properly, and I noticed that the furnace had a buildup of dirt and debris. I cleaned the furnace and replaced the air filter. I also installed a new UV light to help prevent the growth of bacteria and mold in the air ducts. The client was very happy with the results and thanked me for my professionalism and attention to detail.