SHARP Air Purifier And Humidifier With Plasmacluster Ion Technology For Medium-Sized Rooms. Odor And True HEPA Filters For Dust, Smoke, Pollen, And Pet Dander May Last Up-To 5 years Each. KC850U.

Works great!
We moved from FL to NV and the humidity change really affected us as well as just being in a dusty environment. We put this in our master bedroom and it does a great job to clean the air and add humidity which has made it much easier to sleep. It meets our needs. For reference, bedroom is roughly 20′ x 18′ with 16′ ceilings and a joining 20′ x 8′ sitting / media room.

works well, but you can’t place it against the wall.
i’ve been using this for a day now, i know it’s not a fair test i suppose, but if i wait a week i’ll probably never review it. anyway
i gave this a 4 because i don’t like the air sucking from the back, it has no remote, it’s expensive, and the lights don’t dim when the lights are off, in fact the top ones stay on.
i chose this one over winix because sharp invented the plasmacluster and i think they are stronger, and you can turn the stream on.
i chose the humidifier because i do need extra moisture in the winter, the hepa showed it had a longer life and you can wash the pre-filter.
noise:
on low, you can barely hear it, you have to put your ear up to it. you know it’s on because plasmacluster clicks. sort of a light ticking sound, like a tiny arc. but constant.
on med, its louder, more like a soft computer fan, it’s a hush from a distance of about 3′ away, like a spring breeze. the cluster however changes tone – on and off in 1.5 second intervals. the sound is similar to that of a quill pen scratching across paper. annoying, but not overly so. you can’t hear it from a distance of about 10′ but it’s there. i was hoping the louder fan (i like a little white noise), would hush it out, but the cluster just gets louder.
on max – it’s a bit over bearing to listen too, like a hair dryer.
on pollen – it surges high and low, like a rolling wave. it’s hypnotic and distracting. the instruction are confusing in this mode and quick clean where you need or don’t need water in the tank. it seems to work without.
on auto, it stays on low unless its needed to be faster.
the odor detector works, i had to use it like chloroform and place it in a tissue of the sensor. vinegar made the green light blink. wintergreen alcohol made the unit angry and the lights turned orange to red. so that seems to work
i haven’t used the humidifier yet, it doesn’t hold a lot of water, so i don’t have high hopes for this. as an air cleaner the room is fresher – keep in mind for the first 6 hours or so the room will smell like a cross between a dept store and a pool. a deep chlorine smell. it is absorbed by the unit though.
plasmacluster has many claims – removes static, makes your skin moister by placing a layer of water molecules over the skin and prevents evaporation (i find that hard to believe). they say it kills some viruses, mold and smells in the air. it can even clean the scent from cloth. i did test that last one, i have a beaver skin that had a perfume scent in it. and in 20 hours that perfume is gone. so if you have a lover that left a perfume note or pillow case – that scent will be gone quickly.
someone complained about asthma and plasma – no issues here… however my eyes are very dry. someone mentioned that their air seems to get dryer with the plasma on. and this also seems true. with the door closed in my room, i started with 50% humidity, now it’s 40%. which is probably why my eyes are dry.
oh and though i mentioned it, turning the lights off only turns the decorations off in the front. not the top lights, though they look dim, they are bright enough to cast green circles on the ceiling. it’s rather annoying. i would rather have everything turn off when the lights go out. you still need the panel on to tell you your out of water. though the tank on the side does seem to have a window. the water basin btw looks tricky to clean.

Good Humidfier – Not supported for parts replacement
Purchased this product (KC850U) in 2015 – used about 5 months each year in the hot dry season. Works really well for use in bedroom while sleeping. Now the BAD: my unit still works fine except a Styrofoam Float (bottom of page E-17 in owners manual) is on its last legs. This is an item that needs to be cleaned. I have tried to get a replacement part with no success – so I have a good running machine that needs an inexpensive part and not able to obtain it. Calling SHARP support is terrible, they say they do not sell to consumers and recommend a 3rd party that does not offer the part, and the ones they do have say unavailable. BEWARE customer support for this unit seems to be non-existent. I realize I’ve had mine a long time, but you would expect them to have parts support for units that are still sold – this unit is still available for purchase here and on the SHARP website.

I already have one Sharp KC -8500 but I wanted to have a second one. But just when I ordered it I noticed that there
was an other one the KC-8600 which has a larger water capacity. But when I wanted to cancel my first order I was told
that my order was already prepared for shipment .
Anyhow I like the sharp KC-8500. It is very expensive ( espelely the filters) But you always get what you pay for. I am more than happy with It. Over night I have both running an Auto and you don’t hear nothing.

I like how it has a build in humidifier with display showing the humidity level. It has different modes. It’s pretty quiet with the low fan. I do like this product a lot but I wish it’s smaller and doesn’t take up as much space.