Despite the significant benefits they can provide, UV lights are generally one of the most affordable options for quickly improving your home's indoor air quality. Lately, UV lights have gained popularity because they are said to be effective in ending the new coronavirus, COVID-19. Researchers know that the virus spreads in water particles suspended in the air, so only UV lights installed in the ducts that treat the air that circulates through them could be useful. If you have problems with mold growing in your air conditioning unit or mold in the house, or if you are concerned about air quality, installing UV units can be an effective solution. Consult your HVAC technician and decide on the best and most effective place to install UV lights on your HVAC system.
Since UV lights only really work to keep the drain pan and coils free of mold and bacteria, let's compare the price of each one to see what's the best value for money, especially since both achieve the same thing. Coil disinfectant lights are installed to operate constantly and are placed in areas most sensitive to microbial growth. A UV filtration system combines the power of UV lights to eliminate viruses and bacteria with a high MERV filter to trap other particles that can cause respiratory problems, such as pollen and dust. In some cases, UV lighting systems for HVAC generate efficiency and cost savings that can help you recover installation costs.
For effective treatment, the amount of UV light that can pass through well water must be at least 75%. This is because microorganisms can hide behind particles and avoid ultraviolet light intended to neutralize them. Most importantly, the UV lights that most HVAC technicians try to sell you aren't powerful enough to kill even a substantial amount of mold spores, bacteria, and viruses circulating through your system. And the last point, which is really the worst thing, is that UV bulbs are not even installed in ducts most of the time.
In the long term, installing UV lighting in your HVAC system can save you money, as UV systems allow HVAC units to operate up to 35% more efficiently. Finally, some HVAC technicians who work in sales rely on UV light treatment in their system because can kill bacteria.