Ultraviolet light is used for a variety of processes across fields of science, medicine, and home improvement, however ultraviolet light has the potential to eliminate the spread of bacteria and mildew in homes as well, Technology and home improvement should go hand in hand when it comes to heating and air conditioning systems and efficiency. Ultraviolet rays are used for ultraviolet germicidal irradiation which is the removal of bacteria, mold, and other pathogens to increase the air quality of a recognizable space. This is especially pressing in your home since allergens, mold, viruses, bacteria, and more pollutants exist there. The practice of using UV has been adopted by heating and air conditioning professionals in both commercial and residential areas to increase the air quality of both heating and air conditioning units and homes. Repeated and consistent use of UV lighting in heating and air conditioning units decrease the risk of air contamination and possible illness due to exposure to airborne pathogens that are commonly present in heating and cooling systems. Keep in mind that when installing UV in your home, considering energy usage, placement, and lifespan are important to consider. Since high pressure lamps will consume more energy than low or medium pressure lamps, choosing the proper lamp for each device is essential for energy savings. The location of UV lamps can affect the effectiveness of germicidal irradiation. The intensity and number of lamps will affect the optimum function of the UV lighting inside of the heating and air conditioning unit. Regular maintenance and limited lifespan of UV lighting in heating and air conditioning units is yet another issue to be aware of. Most UV lamps need careful tests run on them and cleaned and will need to be replaced every one to three years. Hiring a heating and air conditioning professional that is officially educated and trained in this section is paramount.