Model # BCM646C-NUM

Internet #203600192

Store SKU #657876

Bionaire Cool Mist Tower Humidifier


Cool Mist Tower Humidifier

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Product Overview

This cool mist humidifier disperses a refreshingly cool invisible mist into the air for maximum comfort and freshness. Dryness dissipates to breaths of nourishing air and the renewing effects of moister air become more present in your surroundings. With Bionaire brand technology, you can live in harmony with nature for a serene home environment.

  • For medium rooms
  • 36-hour run time
  • AccuSet digital humidistat
  • Antimicrobial-treated parts
  • Uses filter layered with ARM & HAMMER (6) baking soda
  • Filter-check monitor_x000D_
  • Uses 2 SWF100 filters (E filters) 11.3 x 10 x 25.7_x000D_
  • Note: Product may vary by store

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Air Treatment Product Type
Tower Humidifier
Color Family
Control Type
Humidifier Features
Adjustable Humidistat,Automatic Moisture Control,Tank Empty Indicator,Timer,Water Level Indicator
Humidifier Tank Capacity (Gallons)
Included Items
No additional items included
Minimum run time (hours/tank)
Moisture dispersion type
Cool mist
Number of Fan Speeds
Product Weight (lb.)
Room Size (sq. ft.)
Medium (400-1000 sq. ft.)
Voltage (volts)
Water Filter Replacement Model#

Warranty / Certifications

Certifications and Listings
ETL Listed
Manufacturer Warranty
1 year

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Customer Questions & Answers


Asked by: julie
1. Turn the unit off and disconnect from the electrical outlet. 2. Remove the reservoir from the housing. 3. Unlock the housing from the base by turning the lock knob to the unlocked position. 4. Lift the housing straight up and place to the side. 5. Unlock the wick holder from the base by turning the lock knob to the unlocked position. 6. Remove the wicks from the wick holder. 7. Follow the weekly cleaning instructions. 8. Insert new filters into the wick holder and lock the wick holder back onto the base. 9. Replace the housing onto the base and lock it into place. 10.Fill the reservoir and place back into housing. 11.Repeat Operating Instructions. It will take about 30 minutes for the humidifier to reach maximum output.
Answered by: Bionaire
Date published: 2016-02-03

Can I use the Holmes filter that fits the unit?

Can I use the Holmes filter that fits the unit?
Asked by: Genie
Yes, this humidifier uses two Holmes® HWF100CS filters. Thank you for your question and have a cool day!
Answered by: Bionaire
Date published: 2017-07-20

Do you have the replacement filters that can be ordered for this???? I have the machine but need new filters for it.. Th

Asked by: Russ
The three pack of the HWF100 wick filter for that unit can be found at the link below.
Answered by: Bionaire
Date published: 2016-12-30
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Customer Reviews

Cool Mist Tower Humidifier is rated 1.9 out of 5 by 37.
Rated 1 out of 5 by from A waste of money I bought this last year and used for 1 winter season. When I pulled it from storage to use for this year, it would not switch on...after getting the runaround with Bionaire customer service, I hung up the phone and promptly threw the unit in the yourself a headache and some money, do not buy this humidifier.
Date published: 2016-11-22
Rated 1 out of 5 by from cool mist tower humidifier Very poor product. Constantly clogs up. Filters are overpriced and only last a short time. Does not maintain humidity in a small bedroom. Overpriced for the lack of quality and poor performance. Would not ever buy this product again
Date published: 2013-12-14
Rated 2 out of 5 by from Reconsider other humiifiers Not worth the price. After a few days, fan becomes very noisey and makes clicking sound. Thought I had a bad one , returned it and the second one does the same! Must refill constantly. Has a very nice design and look to it but worthless.
Date published: 2012-09-30
Rated 4 out of 5 by from Works just fine I have had several of these, & use two of them in a large room with a valuable grand piano and a high-output wood stove. They DO raise the humidity meaningfully. Yes, you have to clean the wicks in hot water and dish soap now & then; if you don't, the output drops. Read the instruction book. To the buyers who complain that they are filling it twice a day, but it's not working, I say: just where do you think all that water is going?
Date published: 2015-01-08
Rated 1 out of 5 by from It Stinks!! This unit started leaking the first time i started using it. A waste of money.
Date published: 2012-12-13
Rated 1 out of 5 by from Worst humidifier I have ever had The fan no longer works and I haven't even had it a year. It gives off a very little humidity and is basically a piece of junk. This was a replacement for the first one that didn't work. How many times do you replace it until one finally gets one that will work. How do I get a refund on this?
Date published: 2015-01-09
Rated 1 out of 5 by from Dont waste money or time!!! I bought 2 and one started making noise fromthe start now the second one rattles. Just tried to turn one on after refilling the tank and it wont start!!!! What a waste of money!
Date published: 2012-11-25
Rated 2 out of 5 by from nothing to write home about,it does work!! It works for a small room,maybe 200 ft.². Max., an older person has arthritis in the hands will not be able to tighten, he she will need bigger hand and a small woman would be difficult, it will leak, there is a little bit of difficulty filling it , holding it upside down ,it not have a square top, it will slide around in your sink, for the price I think they could've thought of something better. Like I wrote in the review summary, nothing to write home about. I suggest you put it on your sponge or dishrag to help hold steady.
Date published: 2013-01-15
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