Ultraviolet light has been used in hospitals for years to kill pathogens like bacteria and viruses as part of the sterilization process. By using a similar technique, a UV light air purifier can help to keep the air in your home healthier, which is especially useful in humid areas like Southwest Florida. There are three different types of UV light air purifiers, but they all function in a similar fashion.

UV Light Air Purifier


The most common UV-based air purifiers are:

  • Air handler-mounted purifiers: One or more UV lights is mounted inside the air handler cabinet, illuminating the filter, the evaporator coil and the interior surface of the air handler.
  • Duct-mounted purifiers: A special system including UV lights is mounted in the duct system, typically on the return side.
  • Standalone systems: These are self-contained air purifiers that can be used in any room, up to the rated capacity of the system.

How They Work

The UV light inside the air purifier shines on any microorganisms located on nearby surfaces or in the air stream, within a certain distance from the UV source. Any viruses, bacteria or other microorganisms that are exposed to the light for more than about half a second will have their RNA or DNA degraded by the UV light, killing them.

Certain types of UV-based air purifiers work better than others, because they allow the microorganisms to be exposed to the UV light for a longer period. Generally, air handler-based systems or well-designed standalone systems produce better air quality than a duct-mounted system, which sometimes has air moving too quickly to treat effectively. A properly-designed system, however, can overcome this.

UV light can also break down odors and volatile organic compounds, leaving the air fresh. Moreover, it can reduce A/C maintenance by keeping the evaporator coil cleaner and preventing algae growth that clogs the condensate drain.

To learn more about the benefits of a UV light air purifier, talk to our team at Conditioned Air. We serve Southwest Florida, including the communities between Bradenton and Marco Island.


Your home heating and cooling system is your primary tool for keeping your home comfortable, but insulation is another factor that can have a significant effect on indoor comfort. The type of insulation you use in your home must be carefully chosen, and the insulation R-values must be appropriate for your geographical area. Here is a brief guide to insulation R-values and why they are important.

Insulation R-values For a Comfortable HomeTHE PURPOSE OF INSULATION

Insulation prevents the flow of heat from warmer to colder areas. In a residential setting, insulation keeps warm air in during the cooler months and out during the hotter part of the year. Without insulation, or without enough insulation, heat from your furnace or heat pump escapes from your home in winter, while your air conditioner is overwhelmed with incoming heat during the summer. This makes your indoor spaces uncomfortable and increases the amount you pay for heating and cooling every month.


Insulation R-values indicate how effective a particular type of insulation will be at resisting the flow of heat. There are several types of insulation available to choose from, including fiberglass, cellulose, and foam. Each type of insulation will have an R-value, while better-quality insulation of each type will typically have a higher R-value. The higher the R-value, the better the insulation will be a resisting the flow of heat.

The R-value of insulation can also be affected by the thickness and density of the material, and whether or not the insulation material is compressed. Each layer of insulation is considered separately when calculating R-value, with the values of each layer added together to reach the final R-value rating.

In southern Florida, the U.S. Department of Energy recommends insulation with an R-value of R30 to R60 for attics, R13 to R15 for walls, and R16 to R19 for floors.

Conditioned Air serves heating and cooling customers in the Florida communities of Sarasota, Bradenton, Ft. Myers, and the surrounding areas. Contact us today for more information on insulation R-values and the benefits that proper insulation can have for your home. Call us today!