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  • Bionaire Cool Mist Tower Humidifier, BCM646C-NUM
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Bionaire Cool Mist Tower Humidifier, BCM646C-NUM

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List Price: $79.99
Price: $63.81 + $11.49 shipping
You Save: $16.18 (20%)
In stock.
Usually ships within 3 to 4 days.
Ships from and sold by PORTABLE GUY.
  • Space saving attractive tower design
  • Stylish chrome accent
  • Advanced lcd displays both set and room humidity level
  • Dishwasher-safe Water Tray
14 new from $63.81 5 used from $36.30

Find the Perfect Humidifier Find the Perfect Humidifier

Frequently Bought Together

Bionaire Cool Mist Tower Humidifier, BCM646C-NUM + Holmes "E" Humidifier Filter 3 Pack, HWF100-UC3
Price for both: $76.79

These items are shipped from and sold by different sellers.

Buy the selected items together

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  • Buy Used and Save: Buy a Used "Bionaire Cool Mist Tower Humidifier, BCM646C-NUM" and save 54% off the $79.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.
  • Get a $100 Amazon.com Gift Card: Get the Discover it chrome card and get a $100.00 Amazon.com Gift Card* after your first purchase within 3 months. Learn more.

Product Details

  • Product Dimensions: 11.3 x 10 x 25.7 inches ; 9.8 pounds
  • Shipping Weight: 10.7 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B002MZ5722
  • Item model number: BCM646C-NUM
  • Average Customer Review: 2.8 out of 5 stars  See all reviews (36 customer reviews)
  • Amazon Best Sellers Rank: #444,371 in Home & Kitchen (See Top 100 in Home & Kitchen)
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Product Description

The Bionaire BCM646 Cool Mist Tower Humidifier has a space saving attractive tower design and stylish chrome accents. Its advanced LCD display shows both settings and room humidity level. It has a dishwasher safe water tray for easy cleaning. The ultra quiet operation makes it perfect for use anywhere in your home.

Customer Questions & Answers

Customer Reviews

You fill from the bottom of the tank.
Rochelle L. Farra
I own the most expensively priced model that touted "permanent filter" do not believe it on any bionaire.
The lower the fan setting, the more noise it makes!

Most Helpful Customer Reviews

24 of 26 people found the following review helpful By J. Wagner on January 3, 2010
This is NOT a "cool mist" humidifier. When one thinks of a cool mist humidifier, you assume that it makes a cooled flow of steam from a nozzle, like you see in the department store floor models. That is not what this model does at all, there is no "mist". This model operates on the same principle as a "swamp cooler" or "evaporative cooler" that some of you may be familiar with, or even be using to cool your homes with in the summer. Basically, the water from the tank fills a tray at the bottom of the unit. The filter pads, which are actually wicks, rest in the tray and soak up the water. The fan pulls the air through the filter/wick from which the water will then evaporate, thus humidifying the air which passes through the unit. Simplified: A fan sucks air through a wet pad. So, no "cool mist", but it does increase the humidity of the air.

The drawback of using this method is that the unit becomes less effective the more humid the room gets, unlike a steam-type humidifier which will keep putting out the same amount of moisture until shut off. I guess one could look at it one way and say that the unit will not over-humidify a room, but it also means that if one desires a high humidity level, that level will be very difficult to reach.

So, the good things about the unit:

The unit has a small footprint, which is nice. It also has a decently sized tank which lasts a while for us. Like the previous reviewer, we also live in the Northeast, and I can tell you that right now in the Winter, it is VERY dry here. 25% humidity or so. We got this unit to improve conditions for both of us because we were waking up with dry throats, and to ease conditions for my wife who has intermittent asthma.
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8 of 8 people found the following review helpful By koboilila on January 1, 2010
We just purchased this item in the past week, so this is more a note of first impressions than a full in depth review.

A couple of things I like about it are the small footprint & easy access to the filters for future replacement.

Although aesthetically pleasing, the units poorly designed reservoir is a royal PIA to fill.

The opening to fill the tank is on the bottom and is sealed with a cap that you can easily turn to open. The problem is that the top of the tank comes to such a sharp angle that you can not rest the tank upside down and walk away while it fills because it will certainly topple over. In fact even just holding on its end while filling can be a challenge in a smooth sink who's bottom is slanted towards the drain.

This might not be too annoying an issue if you have a great water supply and adequate pressure to fill the tank very quickly. But because the water in our area is so heavily chlorinated we use one of those filters that threads onto the end of your faucet; which greatly reduces the chlorine, but has a fairly weak amount of pressure, so I am standing there for awhile holding the tank with both hands & waiting for it to slowly fill. One thing I have done to speed up the process is to have a couple of bottles already filled that I can pour into the tank. This still is a PIA though because you either have to have one person hold the tank while the other pours or you have to hold & tuck the tank kind of under your arm while pour with the other hand.

The product description states:

"The unit produces a cool mist that is dispersed by a powerful, yet quiet fan."

Powerful? yes. Quiet, uh-uh; even on its lowest setting this thing makes a good amount of noise.
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7 of 7 people found the following review helpful By Petey Boy on January 10, 2010
I agree with the previous two. The low fan speed setting is too noisy for a bedroom.
The tank is indeed tricky to hold steady while filling in the kitchen sink. As a matter of fact it just slipped out of my hands after almost full (the bottom is slanted and slippery to hold steady resting in the sink) and cracked! Now I have to get a replacement tank! It is very pleasing esthetically and has a small footprint to hide behind funiture. I like the 3 fan speeds and automatic humidity settings. It will shut off when it reaches the set value and turn back on like a thermostat works for your heat. You can't expect it to increase the humidity of a whole house so the area or volume of space must be taken into account when determining if it alone will raise the humidity enough.
A full 1.3 gal tank will last less than 24 hrs on low speed.
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4 of 4 people found the following review helpful By dap on January 1, 2013
This unity is noisy--(do yourself a favor and spring for an ultrasonic unit if you plan to use it in your bedroom).
This unit randomly leaks all over the floor. It might be fine for up to three weeks, then, "boom", water everywhere. I have looked it over and see no cracks, or areas that could be leaking.....mystery..
This unit has a needle on top to show you when to replace the filter. It is useless and moves from side to side at random.
Buy this unit if you want an attractive unit sitting on your floor. DON'T buy this unit if you want a reliable humidifier that doesn't leak, is quiet, and actually humidifies the air.
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3 of 3 people found the following review helpful By sdembo1 on December 12, 2010
I recently bought this humidifier at Home Depot. I had originally wanted a different Bionaire or one of the Crane humidifiers, but they didn't have anything else besides some no-name ones. So, we bought this. At first, I was disappointed because we set it up in our large family room and the digital read-out for the room's humidity level never changed from 26% despite being on an entire day. However, it was evident that the humidity level was higher and I noticed a change in my sinus congestion for sure. I resolved to just keep it and use it even though the read-out didn't work. I primarily bought this because of super dry air in our house and I was suffering from heavy stuffiness and nosebleeds. When we put it in our bedroom, it worked a lot better. I'm guessing because the room is smaller, closed off, and not as drafty. The digital read-out and filter indicator both work perfectly in our bedroom which is great. I like that it isn't loud and I wanted to get one that didn't leave a film on all of our furniture. Since this is not ultrasonic, it does not leave the film. I haven't really noticed the cool mist being too cool for the winter. The canister that holds the water is cumbersome and heavy, but I just have my husband handle that aspect of it. We definitely go through a whole canister of water every night though, so I don't know what the manufacturer means about it lasting 36 hours. Perhaps on low it lasts longer, but on medium is only lasts about 12 to 14 hrs. All in all, I'm glad we got this. It works and has helped with the super dry air at night. My sinuses are much improved. I just wish that it worked in more diverse room types and was easier to fill. The price seemed a little high, but it is much bigger than other humidifiers.
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