Sharp KC-860U Plasmacluster

Nowadays, allergies are becoming more and more common and people suffer from their unpleasant symptoms due to the increase of pollutants and impurities in the air. The best weapon in fighting allergies is an air purifier that can retain the majority of the particles in the air, such as the Sharp KC-860U Plasmacluster designed by the reputable brand Sharp USA. It’s a high-end device equipped with the latest technologies in cleansing the air and it is able to ease allergy symptoms even in chronic cases. It may not be the cheapest model out there but it surely is a fair price to pay for leading a healthy life.

Technical specifications

The operating of this air filter is based on a late hour technology called Plasmacluster Ion that combines a series of filtering properties designed to eliminate up to 99.97% of the impurities in the air using positively and negatively charged ions. They travel around the room and break down microorganisms found in the air, odor-causing bacteria, and even viruses and fungus. It relies on a HEPA filter and a dual stage filtration system that manage to retain even the smallest allergen.
You can place it in the living room, bedroom, kitchen, or office and it can handle room areas up to 341 sq. ft. It’s actually one of the largest models on the market that is capable of dealing with large areas without increasing its energy consumption. Speaking of which, rest assured knowing that it’s an Energy Star rated unit that is designed to consume little energy without sacrificing performance. The CADR ratings for this model, meaning the Clean Air Delivery Rate, are very high, showing once more that it’s a high-quality unit. For smoke, dust, and pollen, it delivers a 231/220/245 CADR
Usually, air purifiers tend to be noisy because they work using fans that draw in the air but this one is actually very silent thanks to the Library Quiet mode. When working only on air filtering at the lowest level, it makes a 19 dB noise while the humidifying feature adds another 9 dB to the sound level.

Specifications Sheet

Specs KC-860U Plasmacluster
Dimensions 15.8” x 11.4” x 24.8”
Weight 25 Lbs
Area Coverage 341 Square Feet
Noise Level 19 dB
Energy Star Certified Yes
Fan Speeds N/A
Filter Type HEPA Filter
Odor Reducing Filter No
Control Panel Button Controls
Timer Function No
Warranty 1 Year


Nonetheless, what makes a good air cleaner are the filtration stages that ensure a complete filtration process. This model includes a series of filter cartridges that work together to eliminate the smallest trail of pollutants from the air, starting with the HEPA filter that captures particles as small as 0.3 microns. Before reaching this filter, the air runs through an activated carbon filter that captures larger particles including pollen, dust mites, smoke, bacteria, viruses, and germs. It does wonder in eliminating allergy sources, turning a living space into a more proper environment.


There are plenty of features that come with the Sharp KC-860U with Plasmacluster technology. First of all, besides the Auto Mode that keeps it running under normal parameters, it also boasts a Pollen Mode that triggers pollen in particular. Also, the Quick Clean Mode accelerates it operating to ensure a fast air cleansing with the same satisfying results. For the most accurate operating, the purifier is equipped with dust sensors that analyze the air and detect changes in its cleanliness so that it will know when to start and stop working in order to avoid energy waste. Unfortunately, it lacks an odor sensor that would trigger odor-causing bacteria, in particular. Still, it can eliminate mold spores and fungus that usually cause bad home odors. It also lacks a timer setting so you can’t set it to work between hour intervals, which would come in handy especially if you want to limit its functioning. A great feature that you will find very useful is the Humidifying mode that also regulates air humidity while releasing clean air into the room. The purifier includes a water container and humidity sensors so that it will know how much humidity the air requires in order to reach a comfortable level.


Although not vital, how an air purifier looks can weigh in helping you decide on a certain model, especially if you want to integrate it into the design of your house. Aesthetics are not something you will be disappointed with when choosing the Sharp KC-860U because it’s a very stylish and good-looking device. The large white housing is very appropriate for a modern home interior and it helps it blend into any décor. Designed in simple lines, with rounded edges and a sleek LCD display that shows essential information regarding its status, this air purifier is proof that less is always more. The controls are placed on the top so you can easily access them and there are also light indicators that help you figure out what the air purifier is doing at the time. The overall device is very compact so you can squeeze it in tight places. The housing measures 15.8 x 11.4 x 24.8 inches and weighs approximately 25 pounds so it’s not the most lightweight air filter that you can carry around with ease, which is why some caster wheels would have come in handy. Another thing that lacks is a remote control for easier access to the purifier.

Warranty and support

What we weren’t impressed with about the Sharp KC-860U Plasmacluster is the short warranty that only covers it for one year after the purchase date. Also, take note that it doesn’t include the filters and accessories so replacing them will be made on your cost solely. However, you will enjoy a prompt customer support willing to help you with any problem you might experience with your purifier.

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