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Deal.ai › Honeywell › Ultrasonic Humidifiers
Honeywell
Honeywell Mini Cool Mist Humidifier HUL525B

Honeywell Mini Cool Mist Humidifier HUL525B

4.3(687 ratings)

Best price now

$38.77at WalmartChecked 1 min ago

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Price facts

  • Lowest price today: $38.77 at Walmart (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the Honeywell Mini Cool Mist Humidifier HUL525B

The Honeywell HUL525B is a small ultrasonic cool-mist humidifier with a 0.5-gallon tank, variable mist output and a directional spout. It runs up to 24 hours on low, has no filter to replace, and shuts off automatically when the tank empties. A large tank opening makes filling and cleaning easier than many compact rivals, and an essential oil tray adds a scent option. It suits bedrooms, desks and nurseries where space is tight; larger rooms will outgrow it.

Best forSmall bedrooms and nightstandsDesks and home officesNurseries and kids' roomsBuyers who want a filter-free humidifier
Pros
  • No replacement filters needed
  • Up to 24 hours of run time on low
  • Automatic shutoff when the tank is empty
  • Wide tank opening simplifies filling and cleaning
  • Directional mist outlet aims moisture where you want it
  • Two-year warranty
Cons
  • 0.5-gallon tank needs frequent refills at higher output
  • Ultrasonic mist can leave white dust with hard tap water
  • Small footprint limits it to one room
  • Essential oil tray is small and basic

Honeywell Mini Cool Mist Humidifier HUL525B prices at every store

  • WalmartNew

    In stock

    $38.77Checked 1 min ago
    Visit Walmart
  • Best BuyNew

    In stock

    $109.99Free shippingChecked 1 min ago
    Visit Best Buy

Store links may earn us a commission. Some prices via Klarna.

Honeywell Mini Cool Mist Humidifier HUL525B price history

Lowest price we've seen: $109.99 on Nov 11 at Best Buy. Tracked across 1 store since Nov 11.

What reviewers say

  • 4.3 / 5687 ratings

Owners rate it well for quiet operation, easy filling and reliable shutoff. Complaints center on refill frequency and white dust from hard water.

What people mention
  • NoisePraisedOwners say it runs quietly enough to sleep next to.
  • FillingPraisedThe wide tank opening makes filling and cleaning simple.
  • Run timeMixedLow output lasts a long time, but high output drains the small tank quickly.
  • White dustCriticisedHard tap water leaves a fine white film on nearby surfaces.
  • Auto shutoffPraisedIt turns off on its own when the tank runs dry.

About the Honeywell Mini Cool Mist Humidifier HUL525B

The Honeywell Mini Cool Mist Humidifier provides a soothing, cool mist without taking up too much room! During cold and flu season or when the air is simply just dry, you can rely on this small humidifier for your entire family. Its compact size makes it ideal for desktops or nightstands. Honeywell humidifiers for bedroom and beyond add necessary moisture to the air, and help ensure proper humidity levels in your home. Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat and nasal passages hydrated, temporarily relieve dry air discomfort, protect furniture, reduce static electricity and even keep plants healthier. This Honeywell humidifier is a cool mist humidifier, and produces a fine, visible cool mist with a directional mist outlet. It has no filter to change, an ultra-quiet operation and variable output settings to let you customize the moisture level in the air, making it a great choice for your family, even as a kids or baby humidifier. Plus, it has an essential oil tray, large tank opening that makes it easy to fill and clean, no filters to replace and it automatically shuts off when empty. It features an up to 24 hour run time.

Specifications

color
BlackSource
actual_color
BlackSource
size
0.5 gallonSource
Moisture Type
Ultrasonic Cool Mist
Room Size
Small
Run Time

Questions and answers

Is it good for a bedroom?
Yes. It is quiet and compact, and the directional spout keeps mist off the wall. Its small tank means refilling more often if you run it high.
Does it need a filter?
No. It is filter-free, so there are no replacement costs. Clean the tank and base regularly to prevent mineral buildup.
Will it leave white dust?
Ultrasonic humidifiers can leave white mineral dust with hard tap water. Use distilled or filtered water to reduce it.
How long does the tank last?
Up to 24 hours on the low setting. Expect much shorter runs on high output.
What room size does it cover?
It is built for small rooms such as bedrooms, offices and nurseries. It is not meant for large living spaces.
Can I use essential oils?
Yes. There is a small essential oil tray, though it is basic and holds only a few drops.
Where is the Honeywell Mini Cool Mist Humidifier HUL525B cheapest?
At Walmart, for $38.77, as of our latest check.
What do buyers say about the Honeywell Mini Cool Mist Humidifier HUL525B?
Rated 4.3 out of 5 from 687 ratings.
Where can I buy the Honeywell Mini Cool Mist Humidifier HUL525B?
2 stores we checked sell it, including Walmart, Best Buy.

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24 Hours on Low Setting
Tank Capacity
0.5 Gallons
Product Dimensions (LxWxH)
8.4 x 7.9 x 7.9 in.
Product Weight
3.94 lbs.
Warranty
2 Years