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Home > Appliances > Humidifiers > Honeywell HCM645

Honeywell QuietCare 4 Gallon Humidifier - HCM645

Abt Model: HCM645

Discontinued Product This item is no longer available from our website.

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Honeywell QuietCare 4 Gallon Humidifier - HCM645/ ProTec Total Product Protection/ AgION Antimicrobial Filter Technology/ 4.0 Gallon /EasySet Electronic Controls

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Customer Rating:

Read 12 Reviews | Write a Review

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Product Details

Honeywell QuietCare Humidifier 4.0 Gallon - HCM645

Features:

New! QuietCare technology is up to 30% quieter than models of similar size and performance
4.0 Gallon output per day, for medium sized rooms
New EasySet Electronic Controls allows you to monitor your speed and humidity simultaneously
Adjustable humidistat automatically maintains moisture level selected
Auto shut-off when desired humidity level is reached or tank is empty
3 moisture output settings
Space saving design
ProTec Total Product Protection
AgION Antimicrobial Filter Technology: Prevents surface growth and migration of mold, fungus, algae and bacteria. Lasts the life of the filter.
EZ Care System: Easy to fill, carry and clean
Speeds: 3 moisture output settings
Replacement filter: HAC-504

Approximate Shipping Weight: 15 lbs

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Product Review Summary

4.0 (based on 12 reviews)

83% of respondents would recommend this to a friend.

Pros

Adjustable Settings (11)
Lightweight (6)
Energy Efficient (4)

Cons

Difficult to Fill (3)

Best Uses

Bedroom (8)
Dry Winter (8)
Living Room (4)
Help With Ailments (3)

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Showing 1-12 of 12 Reviews

5.0

Does a great job, easy to use.

Reviewed by Nancy (Homeowner) from Central Illinois on Feb 24, 2009

BOTTOM LINE Yes, I would recommend this to a friend.

I use this product in my large great room, approx. 1100 square feet. I does a great job. It's easy to fill. The fan is quiet on the low and medium settings.

Best Uses:	Help With Ailments, Dry Winter, Nursery, Bedroom, Living Room
Pros:	Lightweight, Adjustable Settings, Easy To Clean

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4.0

Solid humidifier

Reviewed by Kathy in Park Ridge, IL (Professional, Homeowner) from Park Ridge, IL on Feb 18, 2009

BOTTOM LINE Yes, I would recommend this to a friend.

I purchased this product for my daughter's room and it is ideal for the space. The water has to be refilled nightly. It works well.

Best Uses:	Bedroom, Help With Ailments, Dry Winter
Pros:	Lightweight, Energy Efficient, Quiet, Adjustable Settings

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3.0

One design problem

Reviewed by Dottie (Homeowner) from Placerville, CA on Jan 05, 2009

BOTTOM LINE No, I would not recommend this to a friend.

It is a nice looking unit, relatively quiet, with automatic turn off when it reaches the humidity setting you specify. The one big problem is the water tank. It fills from the bottom, so that after you fill it, you must turn it fill side down to replace it into the unit. The seal is very difficult to set and unless it just right, it will leak when you turn it over. It should have been designed to top fill.

Best Uses:	Bedroom, Dry Winter
Cons:	Difficult to Fill
Pros:	Energy Efficient, Adjustable Settings

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2.0

Not worth it...

Reviewed by M (Homeowner) from Chicago, IL on Dec 23, 2008

BOTTOM LINE No, I would not recommend this to a friend.

Not a great humidifier....it works since the water must be going somewhere but I have not noticed a material difference in the humidity in our bedroom - I think it may be making the air quality worse actually. It's also very noisy despite it's claim to be quiet compared to other humifiers. We are going to replace this one asap!

Cons:

Noisy, Difficult to Fill

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3.0

Puts out a BUNCH of water.

Reviewed by Fosdick (Homeowner) from Chicago on Dec 15, 2008

BOTTOM LINE Yes, I would recommend this to a friend.

This thing makes a genuine difference in an otherwise very arid master bedroom. The overnight air quality is decidedly improved. The tank is easy enough to fill in a tub, but the handle is on the top and the opening is on the bottom. Especially considering the weight when filled, the reservoir handling issues could be a deal breaker for the elderly.

Pros:	Adjustable Settings
Best Uses:	Bedroom, Dry Winter
Cons:	Difficult to Fill

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4.0

3 weeks in and no problems.

Reviewed by me (Homeowner) from Carlsbad on Mar 06, 2008

BOTTOM LINE Yes, I would recommend this to a friend.

I bought a model 640 the same day, this one is larger but I prefer the 640 due to the noise level, which is not terrible, but noticeable.

Cons:	A little noisy
Pros:	Adjustable Settings
Best Uses:	Living Room, Dry Winter

1 of 1 customers found this review helpful.

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4.0

Works well

Reviewed by Mike (Homeowner) from East Kingston NH. on Jan 31, 2008

BOTTOM LINE Yes, I would recommend this to a friend.

Keeps my room moist, as I have forced hot air heat,keeps my nose and troat from drying out at night

Best Uses:	Bedroom
Pros:	Lightweight, Energy Efficient, Adjustable Settings
Cons:	Poor Water Capacity

1 of 1 customers found this review helpful.

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4.0

Overall everything we were looking for

Reviewed by Theresa (Homeowner) from Skokie, IL on Jan 24, 2008

BOTTOM LINE Yes, I would recommend this to a friend.

This is an awesome unit for a family - we go through the 4 gallons daily. I love it because it has no moist output - not damaging out hardwood or walls. It is quite noisy for a model marked "quiet". It has about the same noise level as our hepa on high. The fan does also create a cool fan output - don't plan on putting this in a bedroom.

Pros:	Adjustable Settings
Best Uses:	House
Cons:	Not so quiet

1 of 1 customers found this review helpful.

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4.0

Honeywell Humidifier works well.

Reviewed by Dede (Homeowner) from Palo Alto, CA on Jan 21, 2008

BOTTOM LINE Yes, I would recommend this to a friend.

We have a house in the mountains where the air is very dry. We all feel more comfortable with humidifiers!

Pros:	Adjustable Settings, Lightweight
Best Uses:	Bedroom, Living Room, Dry Winter
Cons:	Prefer larger capacity

1 of 1 customers found this review helpful.

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5.0

HELPS MY SLEEP

Reviewed by OLD GRAY EAGLE (Homeowner) from CHICAGO, IL on Jan 07, 2008

BOTTOM LINE Yes, I would recommend this to a friend.

RUN IT AT NIGHT TO HELP ME SLEEP NEED THE MOISTURE

Best Uses:	Bedroom
Cons:	COULD BE QUIETER
Pros:	Lightweight, Adjustable Settings, Energy Efficient

1 of 1 customers found this review helpful.

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4.0

cool and quiet

Reviewed by dry times in the city (Homeowner) from chicago on Jan 01, 2008

BOTTOM LINE Yes, I would recommend this to a friend.

Takes time to clean and must also order replacement filter cartride.

Best Uses:	Dry Winter
Pros:	Quiet, Lightweight, Adjustable Settings
Cons:	time to clean

1 of 1 customers found this review helpful.

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4.0

Powerful

Reviewed by Regina (Homeowner) from Syracuse, NY on Feb 23, 2007

BOTTOM LINE Yes, I would recommend this to a friend.

Powerful machine - not very quiet on med or high setting, but to moisten a dry winter house, this is a winner. Difficult to handle tank when filling - heavy and awkward, especially for anyone with hand or wrist problems. BUT placed in an upstairs hallway, this machine is working great to make our house more comfortable.