I live in the southern region of the country, and for the majority of the year, the weather is extremely hot and humid. If I step foot outside, I’m immediately wet with sweat. It’s necessary to run the air conditioner for approximately nine months of the year. With temperature in the triple digits and very high relative humidity, the air conditioner carries a heavy workload. Despite all of my efforts to conserve energy, the cooling unit runs just about non stop, and it costs me a fortune in monthly electric bills. I take every possible step to keep the air conditioner running at its best. I hire a licensed HVAC contractor to thoroughly clean, troubleshoot and tune the cooling system every year. Every time I had the air conditioner professionally serviced, the HVAC technician recommended a chemical cleaning of the cooling coil. He showed me the disgusting buildup of mold, mildew and bacteria on the coil. If allowed to flourish, this contamination would spread throughout the house on the conditioned air. Every time the air conditioner started up, it presented a health threat. Plus, the microbial growth hindered the energy efficient and cooling capacity, leading to higher monthly costs and potential malfunction. The HVAC contractor suggested that I invest in a germicidal UV lamp. The lamp takes advantage of ultraviolet light to kill bacteria and contaminants that tend to grow in the warm, damp interior of the air conditioner. It further sterilizes the incoming air, improving the cleanliness and health of my home. Most hospitals have UV lamps installed for the purpose of sterilization in operating suites. The UV lamp was not all that expensive, incorporated into the existing cooling unit, and has made a significant improvement in the performance of the equipment.