Honeywell - 4-Quart Ultrasonic Cool Mist Humidifier - Black

Keep an area up to 350 sq. ft. moist and comfortable with this Honeywell HUL535B ultrasonic humidifier, which features variable settings and a multidirectional mist nozzle to deliver soothing, visible cool mist.
$43.99
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Overview

What's Included


  • 4-Quart Ultrasonic Cool Mist Humidifier
  • Owner's manual

Ratings & Reviews


Overall Customer Rating:
89% of customers would recommend this product to a friend (319 out of 360)

Features


Humidifies up to 350 sq. ft.

So you can enjoy soothing, visible cool mist. The unit also does not require a filter.

4-quart reservoir

Outputs up to 6 quarts of water vapor per day. Runs up to 24 hours before needing to be refilled.

Variable settings

Allow you to adjust the output.

Multidirectional mist nozzle

Helps ensure optimal coverage.

Automatic shutoff

Turns the unit off when it's empty.

Ultraquiet operation

Maintains a peaceful environment.


Overall customer rating

4.3
89%
would recommend to a friend

Pros

Cons

  • Rating: 2 out of 5 stars

    Slightly noisy and leaks

    Posted
    Drew
    • My Best Buy® MemberMember

    I purchased this 12/27/18. When this was working properly, it was fine. Like all ultrasonic humidifiers, it emits a very high pitched noise which isn't noticeable all that much during the day but very noticeable at night. It's bearable and you eventually get used to it. On 1/15/18, I had turned it on in the morning and noticed a sharp "whirring" sound. This occurred on all "settings". I let it run for about 30-45 seconds before turning it off. I tried it a few more times and eventually, the sound went away. I thought it just might be some kind of quirk. When I went to turn it off I noticed that some water had pooled on the base. Nothing drastic, about the length and width of a roll of quarters. I thought I'd splashed some water onto the dresser when I placed the tank back on after a refill. I woke up this morning and water was everywhere. I'm not exactly sure where the leak is coming from and I don't know if the leaks are a result of the noise I heard. I'm going to run it overnight again to see if I can find out exactly where the leak is coming from. Either way, I wanted to leave this comment here to warn others. I've sent a request to the company to see if they'll provide a replacement. The reason I'm not giving this a one-star review is that the opening to the tank is large enough to fit my hand in there to clean. That's pretty useful!

    No, I would not recommend this to a friend

    • Brand response

      ManufacturerTechSupport

      Thank you for sharing this experience. We ask you to please contact our consumer relations team for assistance with your Honeywell humidifier concerns. Our team can be reached by emailing SocialSupport@kaz.com. Thank you. HoneywellSupportTechnician

  • Rating: 5 out of 5 stars

    Great for the price!

    Posted
    KayG
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    My husband and I are expecting and needed to get a humidifier before our little one came, so I researched and learned EVERYTHING there is to know about humidifiers. I chose this one because it didn’t require a filter, has a cool mist rather than a warm one, & it doesn’t break the bank. It has been wonderful so far!! Soon after we bought it I came down with a cold and slept every night with it in my face. The adjustment features are my favorite part because it allows me to choose how much mist I need/want as well as change the direction of the mist. I also love the automatic shut-off feature and how it is really easy to clean!! Just be careful when picking it up and putting it down because the base can detach pretty easily and the leftover water will go everywhere.

    I would recommend this to a friend

  • Rating: 3 out of 5 stars

    Decent humidifier

    Posted
    TechGuru
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    This humidifier is decent. It could benefit from a longer run time considering its size. A bit too big for the end of your bed side table or dresser. I keep mine on my bed room desk. Replacing the water is a bit cumbersome and no matter how hard I try, I always spill a bit of water. Filling it up strictly from the bottom is also slightly annoying. This could be alleviated if they allowed the user to refill the reservoir while upright and connected to the base. Noise is average and it 'gurgles' from time to time. Not a big deal for me, as I always sleep with a fan on that provides white noise. Use purified or distilled water only for best results and minimal maintenance.

    I would recommend this to a friend

  • Rating: 1 out of 5 stars

    Epic Fail

    Posted
    Mastiffloverxoxo

    I was so excited to get this home today. I got home, excitedly opened the package, read the directions, and thought wow this is easy to use! I filled the tank up, carried it up my stairs to my room, plugged it in, and turned the dial on only to discover the loudest whining noise that no person could ever sleep through. Returning it tomorrow and researching other brands. Honeywell, what happened to your tried and trusty brand? Epic fail. And the notice in the box about not returning it to the store? Yeah, not listening to that. Need something else now and not wasting my time sending it back to you.

    No, I would not recommend this to a friend

    • Brand response

      ManufacturerTechSupport

      Thank you for sharing this feedback. This is not what you would expect from this Honeywell Humidifier. If you would like assistance with your humidifier concerns, please do not hesitate to contact our consumer relations team. Our team can be reached by emailing SocialSupport@kaz.com. Thank you. HoneywellSupportTechnician

  • Rating: 5 out of 5 stars

    Very Efficient Humidifier!

    Posted
    cdnmike
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I bought this to maintain a healthy humidity level for my guitars which I keep on stands against the wall in my home office. It does a nice job and uses about a gallon of distilled water approximately every two days. The only thing that is questionable about the humidifier is whether it can work for a 350 sq. ft. room which is about the size of this room. If I don't keep the unit close to the guitars the humidity drops quite a bit according to my hygrometer although I don't have it set to maximum. I think a larger room might require two of these.

    I would recommend this to a friend

  • Rating: 4 out of 5 stars

    Good but,

    Posted
    Pacman
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    We purchased this not to long ago. Nice large tank compared to the smaller one we had. The motor is quiet but you can hear the water dripping all night. We have a Crane that made a buzzing noise from the motor and the water dripped as well but not quite as loud. Maybe it's just ours but the water dripping sometimes makes a noise that sounds like someone is knocking. Kinda startling when you are trying to fall asleep. Also maybe it is our water but it is leaving a white powder on the humidifier itself. At first we thought it was because of it being black since our old Crane was white. A few days have gone by and now our dresser is being covered by the white powder. Our Crane definitely doesn't do that.

    No, I would not recommend this to a friend

  • Rating: 5 out of 5 stars

    excellent ultrasonic humidifier

    Posted
    mdmb
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    i purchased this humidifier for my 18 inch fan. i position the humidier on the center to bottom to create a fine mist, misting fan the temperature should be lowered by 10 to 15 degrees which is ideal for cooling down the room your occupying. its way better than an evaporative cooling fan. of course you need to partially open the window. this cool mist humidier 1 gallon should last for 8-12 hours. the cool mist humidifier is cool and dry to the touch.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Easy to use

    Posted
    rcpmom61
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    I love this humidifier. It’s easy to fill and clean, it’s big enough to have a fill last 5 nights, and small enough to fit in well.The mist function is silent, the unit does gurgle and drip during use. However I have never had a humidifier that didn’t gurgle and drip a little. I keep it on my dresser at the foot of my bed, and have a small fan on my nightstand so I am not bothered by any extra noises. Since I started using it, no more sinus headaches, nosebleeds, or dry eyes.

    I would recommend this to a friend




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