Questions & Answers

Q: QuestionHow does the Plasmacluster technology work?

• A:Answer It splits water molecules into positive and negative ions to freshen and clean the air.

Q: QuestionWhy is this air purifier good for bedrooms?

• A:Answer It has a silent mode that is about as loud as rustling leaves.

Q: QuestionDoes this air purifier have an automatic setting?

• A:Answer Yes, it has built-in sensors that adjust the fan speed for cleaning or humidification.

Q: QuestionDoes this air purifier have a True HEPA filter?

• A:Answer Yes, it has a True HEPA filter that captures 99.97% of particles 0.3 microns and larger.

Q: QuestionHow long do the filters last?

• A:Answer The HEPA and carbon filters last up to 5 years depending on the environment.

Q: QuestionWhat is the room capacity of this air purifier?

• A:Answer This air purifier is ideal for a room size of 254 sq. ft.

Q: QuestionHow many filters does KC-850U have? How long does the filter need to change?

Asked 11 years ago by Anonymous.

• A:Answer Thank you for your recent inquiry regarding the Sharp KC-850U Air Purifier.The air purifier draws in room air from the air intake, passes the air through a Pre- Filter, a Washable Deodorizing filter and a True HEPA filter inside of the unit, then discharges the air through the air outlet. Some odors absorbed by the filters may break down over time, resulting in additional odor. Depending on the usage environment, especially when the product is used in extreme environments (significantly more severe than normal household use), this odor may become strong in a shorter period than expected. If the odor persists, the filters should be replaced. Guide for filter replacement timing True HEPA filter - Up to 5 years after opening Filter life can be greatly reduced depending on the room environment. Cigarette smoke, pet dander, and other airborne particles can reduce filter life. Check filters regularly and replace as necessary. Washable Deodorizing filter - Up to 5 years after opening The filter can be repeatedly used after washing, or it can be replaced. Humidifying filter - Up to 2 years after opening Filter life can be greatly reduced depending on the room environment. Even if 2 years have not passed, replace the Humidifying filter if you notice the following: • Mineral deposits (white, black, or red masses) which are not removed after cleaning or the Humidifying filter is still dirty. • Filter is severely damaged or warped.

  Answered 11 years ago by Sharp Advisor

  
  Helpful (18)Unhelpful (1)ReportAnswer this questionShow more answers (5)

Q: QuestionCan the humidifier function be turned off in humid summer months?

Asked 12 years ago by Anonymous.

• A:Answer The KC-850U has a Clean Air & Humidify MODE Button which will allow you to enable the humidify setting at your digression.

  Answered 12 years ago by Sharp Advisor

  
  Helpful (5)Unhelpful (1)ReportAnswer this questionShow more answers (5)

Q: Questionwater refillhow frequent do I have to refill the water? Do you have model that automatically refill? What's the best humidity percentage in the room for human beings? do you ship to Vietnam?

Asked 12 years ago by Anonymous.

• A:Answer Thank you for your interest in the KC850U Sharp air purifier. Sharp Electronics advises users should only operate this purifier in the regions covered by the warranty. The water should be replaced daily. Sharp does not make any models that automatically refill the water. We do not have a recommendation for the best humidity percentage because there are too many variables that could determine the number. You will need to select the setting that best suits your personal preferences.

  Answered 12 years ago by Sharp Advisor

  
  Helpful (5)Unhelpful (0)ReportAnswer this questionShow more answers (2)

Q: QuestionWhat is the temperature of the air? Warm or cool? From my experience, Cool air tends to make room feel colder in the winter months

Asked 11 years ago by Anonymous.

• A:Answer I know exactly what you mean, and have had other humidifiers that made the room feel cooler. This one does not do that, which is why I like it. In my experience, this is the best humidifier / air purifier that I've ever owned, and is well worth the money. And, it is low-profile and quiet enough that it could be easily located in any room in the house. Just make sure to buy a model that suits the size room where you plan to use it. For example, the one I own is rated to handle up to about 250 square feet.

  Answered 11 years ago by MartyRuby

  Helpful (4)Unhelpful (0)ReportAnswer this questionShow more answers (4)

Q: QuestionDoes the filters needs to be replaced for a period of time?

Asked 12 years ago by Anonymous.

• A:Answer The Hepa filter should be changed once every 5 years.

  Answered 12 years ago by Sharp Advisor

  
  Helpful (4)Unhelpful (0)ReportAnswer this questionShow more answers (4)

Q: QuestionDo you need to use de ionized water or will just regular tap water that might be hard work also

Asked 8 years ago by Chill.

• A:Answer Hello, it is recommended that you use fresh tap water inside the unit. Use of other water sources may promote the growth of mold, fungus and/or bacteria.

  Answered 8 years ago by Sharp Advisor

  
  Helpful (3)Unhelpful (1)ReportAnswer this questionShow more answers (2)

Q: QuestionCan this work with 220V?

Asked 8 years ago by Xavier.

• A:Answer Hello Xavier, this unit can only work with a voltage of 120.

  Answered 8 years ago by Sharp Advisor

  
  Helpful (1)Unhelpful (0)ReportAnswer this questionShow more answers (1)

Q: QuestionAny idea how large tank is for humidifier? Thank you

Asked 8 years ago by K.

• A:Answer Thank you for your recent inquiry in regards to the size of the tank for the KC850U. We are happy to help. The water tank capacity for this unit is 0.96 gallons.

  Answered 8 years ago by Sharp Advisor

  
  Helpful (1)Unhelpful (0)ReportAnswer this questionShow more answers (2)

Q: QuestionI need a humidifier that will keep a room at 50% humidity for guitars. Is this one good for that?

Asked 2 months ago by HendersonNevada.

• A:Answer Hello, thanks for your question. We would love the opportunity to provide you with further assistance and help resolve any concerns you may have. If you could please contact us at [email protected] or call us at 800-237-4277 Thank you for choosing Sharp.

  Answered 2 months ago by Sharp Advisor

  
  Helpful (0)Unhelpful (0)ReportAnswer this question

Q: QuestionI have kc g50 euw and since some time when I turn on humidifier function on, there is a quite loud rattling noice. It's frequency would match the outer ring of the water filter being powered by the small engine.What can I do to prevent the rattling noise

Asked 2 years ago by kanticodes.

• A:Answer We apologize but we only support US products. Please visit the link provided to contact a support representative in your area. http://sharp-world.com/worldwide/

  Answered 2 years ago by Sharp Advisor

  
  Helpful (0)Unhelpful (0)ReportAnswer this question

Q: QuestionDoes this unit help clean COVID in the air?

Asked 2 years ago by AirCleaning.

• A:Answer no, I doubt it. There is nothing inside related to 'Plasmacluster' to kill anything. No UV/Ozone etc. The particulate filter might engage aerosols but that isn't the entire story. Interestingly, I seen dental offices using this type of filter during COVID. I get a warm feeling, but don't think there is any evidence that this reduced spread. It could, inadvertently lead to increased distribution, if the filter draws contaminated air past an uninfected person :(

  Answered 2 years ago by nitrous

  Helpful (0)Unhelpful (0)ReportAnswer this questionShow more answers (1)

Q: QuestionWhy the humidify light on my KC-WS50 won't come on even water tank is full and humidify ON?

Asked 4 years ago by dingkop.

• A:Answer Hello, we are very sorry to hear of this issue. Please email us at [email protected] so that we may advise of this query.

  Answered 4 years ago by Sharp Advisor

  
  Helpful (0)Unhelpful (0)ReportAnswer this question

Q: QuestionHello! 1) can I incorporate some essential oils into the water of the humidifier water tank? 2) Can I use anolyte solution instead of water?

Asked 4 years ago by jaden.

• A:Answer Instructions say only water nothing else.

  Answered 4 years ago by Howyoumetme77

  Helpful (0)Unhelpful (0)ReportAnswer this question

Q: QuestionBought this air purifier, but it keeps changing mode itself.... Board issue?

Asked 5 years ago by EUSA.

• A:Answer I suggest you re-read the instructions. It will explain how long it remains in each, given mode before reverting to the base filtering action. Not every mode 'changes' on it's own, but some due.

  Answered 2 years ago by nitrous

  Helpful (0)Unhelpful (0)ReportAnswer this questionShow more answers (1)