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🌬️ Sharp KC-850U White Plasmacluster Air Purifier: Triple Action Cleansing & Humidifying (254 sq. ft.) Review

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Average

Revainrating 3.5 out of 5  
Rating 
3.7
🌬️ Air Purifiers, 🌬️ Heating, Cooling & Air Quality

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Description of 🌬️ Sharp KC-850U White Plasmacluster Air Purifier: Triple Action Cleansing & Humidifying (254 sq. ft.)

NATURALLY ADVANCED TECHNOLOGY FOR TRULY CLEAN AIR, BUILT-INTO OVER 80 MILLION PRODUCTS SINCE 2001: Sharp’s exclusive patented Plasma cluster ion technology eliminates microscopic pollutants that traditional filters cannot trap, by replicating nature’s own cleaning process of producing positive and negative ions from water vapor in the air. VERIFIED AROUND THE WORLD: Plasma cluster Ion Technology has proven effective in reducing certain viruses including MS2 (Viral Stimulant); certain bacteria including E-Coli, Staphylococcus, epidermidis, and Serratia marcescens; certain common molds and fungus, including Penicilillum and Aspergillus Niger; and most odors that conventional filters don’t reach. And has been tested and confirmed in 17 tests by laboratories in the USA as well as in the U. K. , Germany, Japan, South Korea, China and Vietnam. SAFE: Sharp’s Plasma cluster Ion Air Purifier is not only ARB Certified. It produces 5X less ozone (at less than 0. 01 ppm) than the lowest industry and federal standards set by the FDA, OSHA and NIOSH. TRIPLE FILTRATION SYSTEM: washable pre-filter traps dust and other large airborne particles that passes through the filters. Activated carbon deodorizing filter removes odors that passes through the filters. TRUE HEPA filters effectively remove 99. 97% of particles from the air that passes through the filter from 0. 3 microns and larger. SMART SENSOR: in Auto Operation, fan speed is automatically controlled depending on amount of impurities in the air. The sensors detect impurities for efficient air purification. Each dust and odor indicator shows the quality of impurity to purity of air. LOWER OPERATING COST: long life TRUE HEPA filters typically require changing only every 2 to 5 years, so operating costs are low. (Actual filter life will differ depending on the environment). OTHER KEY FEATURES: Quick clean mode: releases high density plasma cluster ions; Switch the control light from bight to dim or off; and set the fan to low speed, at the quiet 26db for sound sleep; Power Cord Length (feet): 8.3 / 2.5.
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Reviews

Global ratings 6
  • 5
    3
  • 4
    1
  • 3
    0
  • 2
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  • 1
    1

Type of review

Revainrating 5 out of 5

Fully compatible with air purifiers

Maintains 35% humidity/low volume in my tiny Brooklyn studio all winter long with 76F electric heater. Natural hydration. Significantly reduces the amount of dust and purifies the air in just 15 minutes after cooking a heavy steak.

Pros
  • Quality construction
Cons
  • Protection

Revainrating 1 out of 5

Not worth it if there are no replacement filters.

Terrible when it comes to changing filters. I'm trying to get an HPA filter in early December but it won't be available until January 18th! The original filter only lasted a month. I will NEVER buy this device again!

Pros
  • Best in its niche
Cons
  • Interval

Revainrating 4 out of 5

Replaced due to error code

I really like this air purifier/humidifier even though it is expensive. However, the first one I ordered kept showing the error code "E2". I've done everything down to reinstalling the humidifier and even spoke to Sharp Technical Support. After trying everything they recommended and still getting the error, I went ahead and replaced it via Revain and reconfigured the first one. Revain's return policy is great! While the new one works fine, there are no bugs.

Pros
  • Complete set
Cons
  • Not sure

Revainrating 5 out of 5

Sharp plasma clusters everywhere in Japan

In Japan, Sharp plasma clusters can be found everywhere, from hotel rooms to shops to trains. You can even order the Plasmacluster Air Purifier as an accessory for your new car. This unit automatically adjusts the humidity setting based on temperature - the higher the temperature, the lower the humidity (at room temperature of 64-75°F it tries to reach 50%) unless you use the maximum setting that allows it can help to achieve higher humidity. We leave it on Auto and it's a lot quieter than my…

Pros
  • Free for educational purposes
Cons
  • Useless features

Revainrating 2 out of 5

Annoying constant ticking, humidifier bad

Constant ticking. There's also a different kind of ticking when it goes into cleaning mode that sounds like an old tape printer. The ionizing tick is designed that way, but I'm not sure if another constant tick is normal. It's subtle, but incredibly annoying. Not what I expected from a $400 machine that claims to be quiet. I live in NV (which is very dry) and after running the machine for 24 hours humidifying and purifying I can't say the air in my room is cleaner or more humid than before. In…

Pros
  • Good
Cons
  • Good, but not very good

Revainrating 5 out of 5

Great for allergy sufferers

We've been using this in our bedrooms for years and it really helps with allergies. I have a smaller version for my daughter's room. Make sure you get good quality citric acid to clean your humidifier filter monthly and this thing will last forever. Food grade citric acid is available here at Revain and I use it along with a 5 gallon bucket of HD. I use a water tank to carefully weight the filters to keep them fully submerged. It's not very loud and produces a slight amount of white noise that…

Pros
  • Very good value for money
Cons
  • Unbelievable price