Using Light As An Air Purifier

Using Light As An Air Purifier

The amazing abilities of the UV air purifier is undeniable, but is the same ultra-violet light technology also useful when it comes to purifying your ducts?

UV air purifiers have been gaining a great deal of attention lately – and for good reason. Quite simply, UV light is a natural air purifier, capable of killing yeasts, molds, and viruses. In addition, this natural purifier is available for free because it is found in the sun.

But, most people live indoors – not out in the sun! Therefore, the trick is finding a way to use this naturally occurring air purifier in the home. This is where UV air purifiers come in to play. These air purifiers can help in detoxify the air in your home, though it is important to note that they won’t remove particles from the air.

Air purification has rapidly become a multi-billion dollar industry. Three distinct types, each with many variations, are promising to return the new air of Eden into your home. How do you choose one for you and your particular environment? Read, read, read.

More About UV Light

UV light is one of the wavelengths emitted naturally by the sun. Though these waves are invisible to the human eye, they are all around us outside. As the sun emits these waves, they radiate pollutants in the air.

Air purifiers that utilize filters, such as HEPA and carbon filters, work by removing solids such as allergens, pet dander, and dust. Ionizing and ozone air purifiers work by using magnetism and oxygen atoms to remove odors and smoke from the air. UV light air purifiers, on the other hand, work by killing yeasts, molds, viruses, and bacteria that may remain in the air. Unfortunately, UV air purifiers will not take care of dust, allergens, or solids in the air.

The Amazing World of UV Light

UV-C wavelength destroys viruses, molds, bacteria, mildew, yeast, and algae by breaking through the microbe and causing its death. In addition to killing the common cold and influenza germs, UV air purifiers also kill more powerful diseases like anthrax and smallpox.

Taking Advantage of UV Light in Your Ducts

Ultra-violet air purifiers are usually installed in metal air duct systems, as exposure to eyes is very harmful. The faster and more often the air system is circulating, the more effective the UV air purifier will be. There are plug-in air purifier models available that make use of multiple filter systems (HEPA and carbon) in addition to a UV light stage.

Multiple filter + UV stage air purifier models start at about $600. Air duct installed systems, usually offering UV only or a UV / HEPA combination, start around $300 with an average model costing $700 plus installation.

Unlike most other purification systems, UV air purifiers have no odor and are silent, though there is noise inherent in running forced air through a home or office. Light bulbs usually need to be replaced every 15 months or so if the UV air purifier is ran 24 hours a day.

Just Ask the Professionals about the UV Air Purifier

“…ultraviolet radiation, properly integrated with heating, ventilating, and air conditioning systems, shows the most promise as a widely applicable means of air disinfection.” Richard Riley, M.D. United States Government buildings, including schools and hospitals, are required to have UV air purifiers installed in HVAC systems.

Drawbacks to UV Light

There are some situations that would render a UV light air purifier virtually useless. If the air doesn’t circulate in a room or building, or if the air circulates very slowly, a UV light purifier won’t be able to do its job. This is because UV light can only kill contaminates that are very, very close to the light bulb. A UV bulb is only 60 percent efficient at .4 inches from the bulb and only 20 percent effective at 2 inches from the bulb.

It is all too easy to simply follow the yellow-brick infomercial, but Oz is not necessarily the cleanest city in the universe. If one is to seek reality in a highly commercialized market, then the green glasses have to come off. Look to those who are not- at least directly- profiting from a direct sale of their own product.

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