Sharp Plasmacluster KC-850U Room Air Purifier User Reviews and Ratings

Very good at cleaning air. Highly recommended.Much quieter than Honeywell. Accurate detection of particles.It can be used effectively on the "quick clean" setting to purge the air of contaminants. Then by placing it near the door, it can function as an airlock.

So many air purifiers in the $100 to $300 range are essentially the same thing: fan + HEPA filter + carbon pre-filter. You'd think for that much money there would be more to it. On top of that the designs are typically more industrial than consumer oriented. While Sharp KC-850U at its core is still just HEPA + carbon prefilter, it's leaps and bonds better in all the other regards than the market norms.Pro:* The embossed front panel design looks clean and modern* It has sensor that monitors air quality and humidity and adjust itself accordingly* LED light's brightness can be adjusted and turned offCon:* The humidifying functionality is rather weak, it's not enough to replace my stand alone humidifier in the living room* replacement filters are expensive, according to the manual the HEPA filter (around $100) and carbon filter (around $60) good for 5 years, humidification filter ($35) is good for 2 years. You can wash the carbon filter and humidification filter, but in my experience they can only be washed so many times before they wear out.* These Sharp air purifiers are far from mainstream, makes me worried how long I'll be able to purchase the filters before they are discontinuedI'm tempted to -1 star for the lackluster humidification performance, but the unit is so well designed with great attention to detail comparing to everything else I've seen, it deserves a 5.

Love this plasmacluster purifier in my bedroom really keeps air clean. I also like the fact I can use as air cleaner or dehumidifier.

This thing is awesome. I got it because my NYC apartment is full of stagnant, dry air in the Winter (and crappy window unit AC air in Summer), and I wanted to get a better night's sleep. Kid you not, this thing most definitely changed the air quality of my room and I definitely look forward to going to bed now :)

The newer models are quieter but this model does a very good job of controlling air quality and humidifying the air.

I bought the best air purifier because it is pretty quiet and makes a room clean. When i was in Japan, I often used air purifier from SHARP.I would recommend this for the people who want clean air and modest humid in your room.

Greatly improves air quality.Purchased via Amazon Prime two months ago, new, for 299. Prices fluctuate a lot on these, and other vendors charge even more.In a dry climate, on high fan speed (I have it in a larger bedroom and as such it really only works on high) you have to refill the H2O tank twice a day.It's worth the hassle.Over the years I've tried Winix, Honeywell, Friedrich, Austin Air, Holmes, and others too cheap to mention. This Sharp has worked the best of the bunch. Not a miracle worker, but does what it says it will.Vastly superior to Winix, no contest.Filters - expensive & not available everywhere. Wish the unit came with at least one extra charcoal filter. 3-5 year filter life seems impossible, could happen if your air is already pretty clean. I'll be surprised if I get two years out of this filter set.Looks great, which is a nice bonus. The color-changing air quality indicator is a very nice feature.The clicking of the Plasmacluster is noticeable on lower fan speeds.The unit is designed & built well. Plastic, but doesn't feel cheap. Recessed handles make it easy to move.Really has improved the quality of sleep in the bedroom.

The unit is quiet and efficient. Humidifier bring humidity up promptly for the stated room size. The unit has a built in humidity gage, very useful. Had it for 2 months, no mold, works fine.

Works exactly as advertised. No problems and easy to clean/maintain. I would buy this again... and might do so for another room in our house

Very Nice Air Purifier, on the lowest speed it's so quiet I had to check if it was on.Quietest on low I have ever experienced, but I have only experienced this and 2 other purifiers.Covers a large area from what I saw.Has a humidifier built in.Only thing is that filter cost are a little more expensive than others, for me only, I estimated would cost me about $35 to $40 a year if you divide cost by 5 years.

best quality and great price

High quality!! It's so quiet! I recommend to everybody.

Does everything as advertised.

good product.

Is very nice design. Does not spoil decor of room. Works well.very efficientwould recommend to anyone with dust problem.

Just had the unit for two days now....noticed a considerable difference in the air quality of the room - thinking about adding a larger unit to the living room.

one word... amazing!!

Makes no sound at all. Delivers the right amount of humidity and the air feels fresh as soon as I enter the room....my allergy problem is really very improved.

Very nice in my living room

I had one for 12 years and had to replace finally. This one is better in that it has a better humidifier..

We have this for a couple of months and it works great. Only complaint is that the humidifier tank needs to be refilled after each night of use.

Love it!!

I really like it. Earlier i used to suffer from allergies and stuffed nose in morning but after putting this machine in my room, I have seen huge improvement in my sleep quality and i wake fresh in the morning.

I have 4 cats and 3 litter pans. Life before the Sharp was hellish with dust and pet dander, but the plasmacluster takes away all small forms of dust and junk in the air. Amazing! With its eco mode, I leave it in all day during work, so I come home to a very fresh and clean home.

Works very well. Many modes to choose from and it really moved some air around at highest speed. Love the ionizer mode..you can smell it in the air coming out of the unit. I like that you can totally turn off the lights on the front of the unit so your bedroom can stay dark. I will probably buy another one.

Winter nosebleeds be-gone!My house gets extremely dry in winter and thick with dust (built in the 1800's and modernized as years went on). Open living room (where the kids spend most of their time) into a dining/bar area. Since we've been running this machine he has not had the regular winter nosebleeds he suffered from annually. breathe easy my friends... worth every penny.

Great product

Make me feel good in fall.

Can't complain about anything on this one. Does a good job cleaning and quiet enough at night - I can't tell it's on but it doesn't bother.

good.