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Deal.ai › Honeywell › Humidifiers
Honeywell
Honeywell HWM845B

Honeywell HWM845B

5(1 rating)

Best price now

$39.99at Best BuyChecked 13 h ago

20% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Last seen at $39.99 at Best Buy on Nov 10.
  • Checked at 4 stores.

Our take on the Honeywell HWM845B

The Honeywell HWM845B is a warm mist humidifier with a 1-gallon tank and two fan speeds. It runs up to 24 hours on low and shuts off automatically when the tank empties. The warm mist is boiled, so it adds moisture without a wick or filter to replace. It suits small to medium bedrooms and anyone who wants filter-free operation, though it is louder and uses more power than cool mist rivals.

Best forSmall to medium bedroomsPeople who want no filter to buyHouseholds with hard waterWinter heating season use
Pros
  • Warm mist feels comfortable in cold rooms
  • No wick or filter to replace
  • Automatic shutoff when water runs out
  • Runs up to 24 hours on low
  • Compact footprint for a nightstand or dresser
Cons
  • Boiling element uses more electricity than cool mist
  • Louder than most ultrasonic humidifiers
  • Warm mist can be a burn risk around children and pets
  • Mineral buildup needs regular cleaning
  • Small tank means frequent refills on high

Honeywell HWM845B prices at every store

  • Best BuyNew

    In stock

    $39.99Free shippingChecked 13 h ago
    Visit Best Buy
  • TargetNew

    In stock

    $47.49Free shippingChecked 13 h ago
    Visit Target
  • SylvaneNew

    In stock

    $49.99Free shippingChecked 13 h ago
    Visit Sylvane
  • Ace HardwareNew

    In stock

    $53.99Free shippingChecked 13 h ago
    Visit Ace Hardware

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

Honeywell HWM845B price history

Lowest price we've seen: $39.99 on Nov 11 at Best Buy. Tracked across 4 stores since Nov 11.

What reviewers say

Owners like the warm mist and the lack of filters, and many use it through winter in bedrooms. Complaints center on noise, mineral scale and the refill routine.

What people mention
  • Mist warmthPraisedOwners say the warm mist takes the chill off a bedroom in winter.
  • NoiseCriticisedMany find it louder than ultrasonic humidifiers, especially on high.
  • FiltersPraisedBuyers value not having to buy or soak wicks.
  • Mineral buildupCriticisedHard water leaves scale that needs regular cleaning.
  • RefillingMixedThe tank is easy to carry but runs dry quickly on high.
  • SafetyCriticisedSome owners worry about hot water and warm mist near children and pets.

Specifications

Fan Speed Levels
2Source
Width (")
6.4Source
Run Time (h)
24.0Source
Color
BlackSource
Height (")

Questions and answers

Does the Honeywell HWM845B need a filter?
No. It boils water to make warm mist, so there is no wick or filter to replace. You only clean the tank and heating element.
How long does the tank last?
Up to about 24 hours on the low fan speed. On high, expect roughly half that, so plan on a refill each day in a bedroom.
Is warm mist better than cool mist?
Warm mist feels more comfortable in a cold room and does not spread white dust the way some ultrasonic units do. Cool mist units are quieter and use less power.
Can I use tap water?
Yes, but hard water leaves mineral scale on the heating element. Distilled water cuts buildup, and regular descaling keeps output strong.
Is it safe around children?
The unit makes hot water and warm mist, so keep it out of reach of children and pets. The automatic shutoff helps when the tank empties.
What room size does it suit?
It works best in a bedroom, nursery or small office. For large open rooms, a bigger console humidifier moves more moisture.
Where is the Honeywell HWM845B cheapest?
At Best Buy, for $39.99, 20% under what the other stores charge, as of our latest check.
What do buyers say about the Honeywell HWM845B?
Rated 5 out of 5 from 1 ratings.
Where can I buy the Honeywell HWM845B?
4 stores we checked sell it, including Best Buy, Target, Sylvane, Ace Hardware.

Stores we've priced the Honeywell HWM845B at

  • Ace Hardware deals and prices
  • Best Buy deals and prices
  • Target deals and prices

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