SHARP Air Purifier with Humidifier Combo – Covers up to 1,230 sqft in one hour, True HEPA Filter Air Purifier for Medium Rooms, Home Nursery, Dust, Smoke, Pollen – KC850U

Great for allergy sufferers
We have used this for years in our bedrooms and it really helps with our allergies. I’ve got the smaller version for my daughter’s room. Make sure to get some good quality citric acid to clean the humidifier filter monthly and this thing will last forever. Good food grade citric acid is available here on Amazon and that’s what I use, along with a 5 gallon HD bucket. I use the water tank for this thing to weight down the filters carefully so they stay fully submerged.Its not very loud and creates a light white noise for you that isn’t too obtrusive.The filters all last a pretty long time and have different change frequencies outlined in the manual. You can get all of the filters from here on Amazon.My allergies are so bad I have to get weekly allergy shots and this really helps. I was also able to get a letter of medical necessity from my allergist so we could claim this on our medical FSA.

Great unit – watch the prices.
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.

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. anywayi 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 worki 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.

I already have one Sharp KC -8500 but I wanted to have a second one. But just when I ordered it I noticed that therewas an other one the KC-8600 which has a larger water capacity. But when I wanted to cancel my first order I was toldthat 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.

This is is my second unit and is needed to keep humidity at desired levels. The design appears to be exactly the same although my first unit is well over 10 years old. It is built well, works well and worth its relatively high cost if you are thinking you will need its functions for many years. It does have some drawbacks: there are several filters and some (HEPA) are expensive and you have almost no choices in where to get them; there is routine maintenance required (anything with water almost always does) at least every two or three months; and, the water tank needs refilling twice a day (could be bigger). Final thought, I snapped it up when I saw it available and had the money.