Customer Reviews for Sharp HEPA Console Air Purifier, 3-Speed, White (KC-850U)
60 reviews
Most helpful positive review
Posted Mar 27, 2025
Does exactly what we need
Mostly quiet and very efficient machine. We purchased this dual air purifier and humidifier for the very dry winters in NC. The humidifier is mostly quiet (low hum) until its drawing down more water, then you hear the gurgling sound of that. The air purifier only mode has the same low hum, neither are entirely distracting once you've heard them a few times. We no long...
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VS
Most helpful critical review
Posted Jan 11, 2023
Terrible, mold-collecting, single-use device
I invested in this very expensive product because I thought that it would effectively purify and humidity my home. It is IMPOSSIBLE to clean - literally, when mold collects in the water container, which it will because there is stagnant water, the opening is too small to sufficient clean the container and there are too many crevices that you cannot properly clean it
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TomFly
Reviewed at:
Sharp
Posted Oct 16, 2025
Great product, but not long-lasting
I am on my 2nd KC850U, the first one kept giving me an E2 error message and it would never work. I bought a new one, which has been great for about a year, but now whenever I turn it on, it automatically shuts over in about one minute. I have cleaned it, replaced filters etc. But the machine won't stay on.
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Ivory
Verified Buyer
Reviewed at:
Sharp
Posted Mar 27, 2025
Does exactly what we need
Mostly quiet and very efficient machine. We purchased this dual air purifier and humidifier for the very dry winters in NC. The humidifier is mostly quiet (low hum) until its drawing down more water, then you hear the gurgling sound of that. The air purifier only mode has the same low hum, neither are entirely distracting once you've heard them a few times. We no long...
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Verified Buyer
Reviewed at:
Sharp
Posted Dec 18, 2024
First Use Upon Arrival
Directions for first use were clear. Information about the various modes and options was plentiful.
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Japan rocks
Verified Buyer
Reviewed at:
Sharp
Posted Sep 6, 2024
Great product
Awesome product. It’s my third one, Texas water is super hard and does cause a foul smell over time that cannot be cleaned. I never had any issues with them in the past, outstanding product.
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KIMBERLY B.
Verified Buyer
Posted Sep 3, 2024
Love it
This is in my son's room and has reduced his congestion and sneezing. I didn't think we had bad air quality in the house but when you walk in his room it's noticeably better.
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JohnS
Verified Buyer
Reviewed at:
Sharp
Posted May 31, 2024
Great Buy at a Great Price
Unit is very quiet unlike our previous bedroom humidifier/air filter. The light display also indicates when the unit has encountered dusty air, another plus.
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Keme
Verified Buyer
Reviewed at:
Sharp
Posted Feb 16, 2024
Sharp Plasmaclust
Very quiet, cleans air very well. Easy to clean the filters.
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Verified Buyer
Reviewed at:
Sharp
Posted Jan 27, 2024
Refilling
The only reason I didn't give a five is because of the way you refill with water, I have a back problem and water tank is heavy when it is full therefore I have to fill it with less water more often
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Response from Staples :
We love knowing that your Sharp Plasma cluster Ion Air Purifier with True HEPA + Humidifier for Medium Rooms (KC850U) has met your expectations. Thank you for allowing Sharp to be a part of your home. If there is ever anything you need, please feel welcome to connect with us at any time. It’s a pleasure to have you as part of our Sharp family.
Sharp Advisor, January 27, 2024
Amillian P
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Sep 30, 2023
Is Wonderful !!
I bought this air purifier about two months ago and so far it is the best purifier I have come across !!
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Sololou1
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Sep 8, 2023
Great
Very good product! Definitely recommend this product.
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cristycid06
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Aug 10, 2023
great!
I love this airpurifier, it works perfectly for my bedroom. I can recommend this to anyone looking for it.
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Response from Staples :
We love knowing that the unit has met your expectations. Thank
you for allowing Sharp to be a part of your home. If there is ever
anything you need, please feel welcome to connect with us at any
time. It’s a pleasure to have you as part of our Sharp family.
SHARP ADVISOR, August 18, 2023
Tal88
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Jul 23, 2023
Great features
It works really well! I havent had any problems so far
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Response from Staples :
We love knowing that the unit KC850U has met your expectations. Thank
you for allowing Sharp to be a part of your home. If there is ever
anything you need, please feel welcome to connect with us at any
time. It’s a pleasure to have you as part of our Sharp family.
SHARP ADVISOR, July 25, 2023
CGuzik
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Jul 16, 2023
Ahhhh
Bought for my daughter who has severe Asthma. Feel good the air is good quality now in her home. Breathing deeper
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CoitNaaman
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Jun 23, 2023
Worked well
It cleaned the air, humidified the room, and all the while remained fairly quiet.
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Nature Boy
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Jun 13, 2023
Solid
Solid solid solid. It makes it happen. I recommend for people
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bob414141
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Jun 7, 2023
Great for odors
Can neutralize even the most noxious of stenches emanating from the rear end of my step father. I surely would have perished by now if not for this wonderous device
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Garciasan
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted May 25, 2023
awesome air purifier
I bought this air purifier does really well to help out with allergies I highly recommend it.
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gar68w
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted May 24, 2023
Good for allergies
I worked well for our son's allergies. It was quite enough for him to sleep but powerful enough to minimize allergens.
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matt107
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted May 3, 2023
Great air purifier
I just bought this air purifier. But so far it's been everything I could have hoped for. I already think my son is breathing better.
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Kbkbkb556
This reviewer received a free product or coupon in exchange for an unbiased review of the product
Reviewed at:
Sharp
Posted Apr 30, 2023
Amazing Airpurifier
We bought this air purifier a month ago and have been thoroughly pleased with the air quality since. My allergies have disappeared.
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