Honeywell HWM705B Warm Mist Humidifier Review

Honeywell HWM705B Warm Mist Humidifier Review

Honeywell HWM705B Filter Free Warm Moisture Humidifier Review

Honeywell HWM705B is well designed warm mist humidifier with moisture output around 1 gallon per 24 hours. That is enough for rooms up to 250 square feet. Honeywell HWM705B is filter-free. It provides soothing, a visible warm mist that helps make you and your home more comfortable. Also, the Honeywell HWM705B price is very friendly.


  • Well designed
  • Strong handle for water tank
  • Medicine cup for added relief when used with liquid inhalants
  • Easy to fill water
  • Refill light
  • No filters


  • Only 2-speed settings could be more
  • Before refilling the water has to wait for it to cool down
  • Makes a bubbling sound

Design and size

Honeywell HWM705B looks like a classical humidifier. It has a transparent water tank with a top-fill design. Filing the top-fill tank is as easy as spraying a plant. The water tank is also removable.

The humidifier is small, height x width x depth is 12 x 10.5 x 6.2 inches, weight is only 5 pounds. The best place for it is a table or rack.


  • Auto shut-off when empty. This means you don’t have to bother if the water in the reservoir falls below minimum levels.
  • For your convenience, a refill light illuminates when the water container needs to be filled.
  • 2 moisture output settings allow you to choose the best option according to your comfort levels.
  • A deep and narrow medicine cup enables you to put in essential oils for aromatherapy.
  • Easy to use manual knob control.
  • Illuminated power switch.
  • The boiling water kills bacteria in the water. Cool mist humidifiers do not do that.

Noise level

For a warm-mist humidifier, it is very quiet.

It makes some noise when water boils and when the water level falls and allows water to flow from the tank you get a gurgling noise as air replaces the liquid in the reservoir. Good thing is that the design is very clever and the unit blocks most of the noise beginning with the plastic baffle and then through the cooling tower.

Maintenance and upkeep

Very easy cleaning. Soak the unit in vinegar for about 15 minutes. Then brush off the scale of the with a toothbrush like a large tooth.

Plastic parts are also easy to clean.

The water tank is quite large and the unit works for 24 hours. So you don’t have to refill it often. Also, refilling is super easy.


Honeywell HWM705B is a great warm mist humidifier. It has all you need and even more. No crazy cleaning, no refilling every hour. Plus it has a medicine cup and you can use it as a diffuser.



Honeywell HWM705B

Coverage (Sq ft / m2)

250 / 23


Humidifier Technology


Type of humidifier

Warm mist

Moisture output per 24h (Gallons/liters)

1 / 3.8

Tank size (gallons/liters)

1 / 3.8

Run time per tank

24 hours

Removable tank

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Water refill indicator

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Humidity display

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Mist output control

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Control type


Programmable timer

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Automatic safety shutoff

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Carrying handle

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Remote control

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Filter price

Filter cleaning and (or) replace

Germ protection

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Demineralization cartridge

Noise level


Energy usage (max)




Size (inches / centimeters)

Height: 12 / 30.5

Width: 10.5 / 26.5

Depth: 6.2 / 16

Weight (pounds / kg)

5 / 2.3


3 years limited

Overall Rating (max 5)

4.2 out of 5 stars (4.2 / 5)

15% Price/performance

4.5 out of 5 stars (4.5 / 5)

5% Design

4 out of 5 stars (4 / 5)

35% Performance

4 out of 5 stars (4 / 5)

15% Features

4 out of 5 stars (4 / 5)

10% Noise level

4.5 out of 5 stars (4.5 / 5)

20% Maintenance & Upkeep

4.5 out of 5 stars (4.5 / 5)


Other useful resources

Read our full humidifier buying guide here.

See Indoorbreathing humidifier comparison charts. (Humidifiers by mist type, by type, by price and coverage area).

Other Humidifier Reviews:

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Sunluna SL-AH001 Cool Mist Ultrasonic Humidifier for Baby Review

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TaoTronics Cool Mist Humidifiers for Babies Review

TaoTronics Cool Mist Humidifier for Babies [BPA Free] Review

Go ahead and start thinking about which of the many humidifiers you are going to go with, especially if you have children. One of the top ones that you can purchase is the TaoTronics cool mist humidifier for babies [BPA free] and it is going to be extremely easy to use and affordable. Pros Cons […]


My name is Ryan. I have had a hard time dealing with my allergies. Happily, I found that an air purifier was effective to ease my allergy symptoms. I spent a lot of time researching the best air purifier. I know how hard it can be to find the suitable one. During the reading period, I also read a lot about humidifiers and dehumidifiers. I learned the mechanisms behind the technologies as well as the manufacturers and organizations within the industry. I now feel convinced that I have built a guide that shows you all you need to know about air purifiers, humidifiers, and dehumidifiers. So I came up with the idea of creating this website.

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