How UV Air Purifier Works?
Air purifiers that are equipped with ultraviolet light are able to kill all airborne microorganisms, like mold, bacteria, viruses and more. The UV technology they utilize release UV lights which contain UV rays. As the polluted air passes through the air purifier, organic matter in the air is exposed to the UV radiation and is completely destroyed. This is different to how filter air purifiers work.
UV light Technology Vs. HEPA Technology
Filters can help air purifiers to capture airborne particles and allergens. And HEPA filters can also capture germs and microbes, but they are usually incapable of destroying or sterilizing microorganisms. This is what UV lights specialize in. If a space has a tendency to breed unhealthy microorganisms prolifically, air purifiers that have UV lights are the most powerful and effective ways to remove all them.
Considering the fact that air purifiers with UV light are not as effective as filters in removing dust, allergens and gaseous Volatile Organic Compounds (VOCs), UV lights are often used in conjunction with other filters (such as a HEPA filter or activated carbon filter) to build an enhanced air filtration system for air purifiers. But those using ozone generators to release UV lights can produce ozone gas, which may become harmful to humans.
There are two types of UV light available for air purifiers, one is Airstream disinfection, the other is Surface disinfection. Airstream disinfection requires a great quantity of UV rays and a powerful fan to accelerate the airflows, thus curbing the proliferation of microbes. While Surface disinfection is often installed in air-handling units to prevent bacteria proliferation.
UV Air Purifier Reviews and Comparisons 2016 – 2017
If you are considering obtaining a UV light air purifier, any of the following models can be great choices. They are all top rated UV air purifiers which are reliable, efficient and popular.
Top 5 Best UV Air Purifier
GermGuardian AC5000E 3-in-1 Air Cleaning System with True HEPA Filter, UV-C and Odor Reduction, 28-Inch
The GermGuardian AC5000E is a slim air cleaner that stands about 28 inches tall. With an integrated 3-in-1 air cleaning system, it’s great for medium or large rooms. This system has several levels of air cleaning and can last for about 6 to 8 months based on the durability of its parts. Basically, a pre-filter and a charcoal filter remove larger particles and reduce common household odors caused by smoking, cooking or pets. And a True HEPA filter captures up to 99.97% of airborne particles as small as 0.3 microns (including dust mites, pollen, pet dander and other allergens). The benefits of most air purifiers may end there, but this unit is not average. It uses UV-C light technology to kill airborne bacteria, viruses and mold spores. And with the help of titanium dioxide, the UV-C light is able to decompose odor molecules. The GermGuardian air purifier with UV light works efficiently but quietly. Besides, this unit comes with a new feature that has an indicator lights to remind you when you should replace the filter and the UV-C bulb automatically.
1. Ideal for medium or large rooms
2. UV-C light combines the HEPA air filtration to eliminate both airborne particles and microbes, including dust mites, pet dander, pollen, bacteria, viruses and mold spores
3. Auto indicator lights alert you the right time to change the filter and the UV-C bulb
4. CADR rated 125+, 5-year warranty
Surround Air XJ-3800 Intelli-Pro Air Purifier with Photocatalytic Filter HEPA/Carbon Filter and Germicidal UV Lamp
The Surround Air XJ-3800 not only looks like a shield, it works as one too! This unit is ideal for rooms as large as 600 square feet. It has two outstanding features: 7 types of filtration and a self-monitoring system. Let’s go into detail, to see how wonderful and powerful it really is. Its 7 types of filtration contain six leading purification technologies, which work effectively to eliminate airborne toxins, allergens, particles, microscopic viruses and bacteria. The permanent pre-filter, as a forerunner of the entire purification system, providing previous and necessary filtration for other filters. The long-lasting HEPA filter is clinically proven up to 99.97% efficient at removing airborne particles and allergens while the activated carbon filter absorbs airborne chemicals, gases and common household odors. In addition to basic filter filtration, this unit has an electrostatic dust collector to trap particles and pollutants, an ozone-safe ionizer to enhance the filter efficiency, and the germicidal UV lamp to eliminate airborne microorganisms. As for the self-monitoring system, this unit features a wide array of sensors and monitors. Diagnostic sensors alert you to when you should replace the filters and clean the metal dust collector grid while sensors of odor, dust and allergen will show you what sort of airborne pollutants are detected. The clean air monitor lights display air quality levels, and the UV light and ionizer indicators will let you know whether they are working or not. When set on AUTO, it can help to maximize filtration performance and save energy. In addition to all of these features, this unit runs quietly and efficiently, making it very practical to use. You can find more UV light air purifier reviews information in the comparisons part of this post.
1. Clinically proven effective in rooms up to 600 square feet
2. All leading air purification technologies are perfectly combined in one unit: washable and permanent pre-filter, activated carbon filter, 99.97% efficient HEPA filter, safe ionizer, photocatalytic filter, germicidal UV lamp and electrostatic dust collector
3. A comprehensive auto system features a wide array of sensors and monitors to let you all important thing related to the air purity
4. Quiet and efficient operation, low-cost replacing filters
5. Guarantees: 30 days no-hassle money back, 3 years warranty
The GermGuardian AC4825, with its 3-in-1 air cleaning system, is great to use in medium sized rooms. It first employs filter purification (which involves a pre-filter, a HEPA filter and an activated carbon filter) to capture 99.97% of airborne particles, including dust, debris, pollen, mold spores, pet dander and other airborne allergens. It also vastly reduces common household odors from pets, cooking and smoking. And then this unit takes the UV-C light as a powerful weapon to destroy airborne viruses and bacteria since the UV-C light can permanently damage the DNA of germs and render them to die. In order to keep the filter and the UV-C bulb in good condition, this unit comes with indicator lights to alert you to replace the filter or UV-C bulb, blinking to let you know that you need to take action.
1. UV-C light, HEPA filtration and Activated Carbon filter formulate a 3-in-1 air cleaning system for medium sized rooms
2. New indicators to remind of replacement of filters or UV-C bulb
3. Ultra-quiet operation, Energy Star certified, CADR rated 100+
GermGuardian, GG1000 Pluggable UV-C Air Sanitizer with Odor Reduction
The GermGuardian GG1000 is a small and compact air sanitizer that can be used in any small areas, such as the kitchen, bedroom, bathroom, or even plugged in beside your pet’s area. This unit is very flexible. Wherever there is a plug is available, you can activate it to sanitize the air since the plug is adjustable and can fit almost all types of outlets. Unlike traditional air purifiers, this unit doesn’t require filters to operate, so there are no more filter replacements and cleaning hassles. All this unit relies on is powerful UV-C light which can destroy over 98% of airborne bacteria, viruses, smoke, mold spores, dust mites, cooking and pet odors, and other allergens. But don’t get alarmed, the UV-C light is natural and can’t produce any harmful ozone gas. And besides, it’s a truly whisper-quiet unit while running.
1. Compact and pluggable air sanitizer for small spaces
2. the natural and ozone-free UV-C light kills over 98% of airborne bacteria, viruses, mold spores
3. doesn’t require the filter to operate, but the UV-C bulb should be changed every 6-8 months based on use
4. Whisper-quiet operation, adjustable plug
The Honeywell HHT-149 is designed for rooms about 180 square feet in size and creates a new air environment for the space. It has a HEPA filter that can remove over 99.9% of airborne particles and allergens, including dust, pollen, pet dander, smoke, mold spores. And its UV technology also helps to remove impurities from the air. Besides, this Honeywell air cleaner unit features 12 cleaning levels and an ionizer, which ensure thorough air cleaning. And the ionizer can be turned on or off, depending on your needs. On the top of this unit, there is an LCD display that shows a filter gauge, through which you can clearly see when the filter should be replaced. And it has a 1-18 hours timer that allows walk-away purification because the timer can automatically shut off the unit when set time is finished.
1. Makes all the air in rooms up to 180 square feet clean and pure
2. HEPA filter works with UV light removes allergens and impurities from the air while 12 cleaning levels enhances the filtration efficiency
3. LCD display, a timer with auto-off and an ionizer with on/off control