How long do uv lights last in hvac?

Most quality lamps will emit at least 80% of their original UV-C emission at the end of a year. Replacement bulbs are an ongoing cost that you'll have to consider. The UV lamp can have one or two lamps, and each bulb must be changed every 6 to 12 months. This will depend on a few factors, such as how you use the system and how often you use it. Generally speaking, a germicidal UV light used to disinfect indoor air should be replaced every 9000 hours.

This equates to approximately 12 months. If you or your family members suffer from allergies or asthma, maintaining a regularly scheduled UV bulb replacement plan is absolutely essential to your well-being. Unlike traditional UV disinfection systems that operate 24 hours a day, the new automated systems provide ultraviolet light depending on the use of the air conditioning. If you're concerned about indoor air quality, consider installing ultraviolet (UV) light on your air conditioning system.

UV light has germicidal properties, making it ideal for disinfecting air passing through the air conditioning system. UV lights disinfect air as it circulates through ducts, eliminating harmful bacteria, mold and other airborne contaminants. Spiral disinfectant lights are great for keeping the HVAC system clean, but air sanitizer lights are the best at cleaning the air itself. Be sure to check and recheck the instructions that come with the UV light before you start drilling.

Once installed, UV lights require very little maintenance and only need attention when they need to be cleaned or replaced. The location of the hole doesn't have to be precise, but make sure it's relatively centered on the return duct housing; it's not recommended to install the light too close to the return filter. A more complicated system with lights mounted on all ducts will help keep the system clean, but its installation is more difficult and expensive. We recommend installing a UV light system designed to disinfect air in the return air duct of your air controller.

Installing the light as close to the center of the duct as possible will ensure that the UV light absorbs as much air as possible when the air conditioner or boiler is running. UV lights in heating, ventilation and air conditioning systems eliminate bacteria, microorganisms and mold to keep the air inside the house clean and safe.


lights are relatively affordable, especially compared to air filtration systems, such as air purifiers and filters. However, like any air purification product or service, UV lights aren't immune to damage or last forever.

In addition, both types of disinfectant lights prevent dirt from accumulating and circulating through the air conditioning system.

Terrance Bresnan
Terrance Bresnan

Award-winning internet advocate. Infuriatingly humble coffee scholar. Incurable beer buff. Unapologetic pop culture enthusiast. Amateur food specialist. Total zombie advocate.

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