Bionaire BUL7933-UM Ultrasonic Tower Humidifier

by Bionaire
Today: $87.49
At other retailer: $123.51 Save $36.02 (29%)
Free Shipping*

Club O Gold Members Earn

$4.37 | 5% Rewards*




5% Rewards

Earn even faster

Free Shipping

Never pay extra*

Exclusive Rewards

Save big-- up to 40%

Exclusive Offers

Straight to your inbox

5% Dining Rewards

Get paid to go out tonight

ITEM# 14346907
  • Delivery Estimate

    Select a Product Option to view shipping

      **Delivery date is approximate and not guaranteed. Estimates include processing and shipping times, and are only available in US (excluding APO/FPO and PO Box addresses). Final shipping costs are available at checkout.

    • Warranty
      Select an option before changing warranty
    • Notifications

    Love this item?

    Save it to a list so you can find it anytime!


    something went wrong.

    Please refresh the page and try again.


    ITEM#: 14346907

    The LCD display on the Bionaire ultrasonic humidifier displays the room humidity level and the current settings, and the space-saving design allows you to use it in any room. It features a rotating nozzle to easily direct the ultra-fine mist.

    • Ultra-quiet operation
    • Space saving design
    • Advanced LCD display
    • Displays room humidity level and the current setting 
    • Clock and night light
    • Ultra-Fine cool visible mist 
    • Rotating nozzle for directional mist
    • For large sized room (greater than 1000 square feet)
    • Requires distilled water
    • Light when tank is empty
    • Made of plastic and metal
    • Includes manual with care instructions
    • Clean occasionally for optimal humidity

    • Watts: 35 Watts on low/ 48.5 Watts on High
    • Capacity: 1.5 gallons of distilled water
    • Dimensions: 13 inches long x 17 inches wide x 14 inches high
    • Weight: 10 pounds


    Material Plastic
    Color Black
    Control Electronic
    Product Features Ultrasonic
    Dimensions See Product Description
    Country of Origin China

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Most Helpful

    • Excellent, powerful, sleek design.
      Verified Purchase

      This is by far the best humidifier I have ever purchased. It works well and blows out a very strong stream of cool vapor. The design is nice. It doesn't have that "medical" look that other humidifiers have *** . I've only owned this unit for a week, so as far as build up of lime, or whatever hard water has, I cannot comment. Highly recommend.

      Read More
    • Most Recent

    • Nice, Quiet and great inside a large bedroom
      Verified Purchase

      This user earned $2.00 Club O Rewards for writing this review.Learn More

      This humidifier really adds moisture to dry air. My nose use to be so dry however this humidifier fixed that issue. It last for hours (even days) on a full tank

      Read More
    • Humidifier
      Verified Purchase

      Perfect size for my bedroom and last up to 3 days, before refilling.

      Read More
    • The Best Humidifier I have ever had
      Verified Purchase

      This user earned $2.00 Club O Rewards for writing this review.Learn More

      Extremely satisfied with this. I live in Arizona where the Humidity is 10 %. I have it in the bedroom and it climbs to over 50 %.Love it Love it Love it

      Read More
    • It was great...
      Verified Purchase

      Until I noticed this fine white mist on EVERYTHING in my home! It even filtered onto my glass shelving in my curio cabinet. I wish the unit didn't do this, as I loved the noise level and the profile. It just doesn't work out for me.

      Read More
    • Nice
      Verified Purchase

      This user earned $2.00 Club O Rewards for writing this review.Learn More

      Great for use in our 1100 square foot apartment. Will run for about 24 hours when the tank is full. Pop the tank out and fill in kitchen sink.

      Read More

    Questions & Answers

    • Q:

      "How many gallons does the water reservoir hold?"

      • A:

        This humidifier holds up to 1.5 gallons of water.

    • Q:

      "does the product use a filter do not want to pay for filters."

      • A:

        The unit does not use a filter.

    • Q:

      "Is this humidifier cool or warm mist?"

      • A:

        It is cool mist.

    • Q:

      "Why did you choose this product?"

      • A:

        Love it, Love it...a brand I thrush!! Thank you and HAPPY HOLIDAYS friends!

      • A:

        After reading the reviews, I like the non-filter, the design, the color and Ultrasonic aspects. I need a new humidifier. I look forward to Overstock immediate delivery. Thank you.

      • A:

        because it was marked down.

      • A:

        My apartment is so dry and I've been looking for a good quality humidifier for quite some time.

      • A:

        with the heat on My sinus is dry and need the moisture. Hope this will work!

      • A:

        I got this to Keri on my living room. I hate winter cause the heater dries out the air so bad. Plus, I'm prone to getting bronchitis, so I am trying to be proactive.

      Read more Read less
    • Q:

      "I cleaned my humidifier because the tank empty was lit (when the tank was full) and now very little mist is coming out the top when it is on the highest setting. Suggestions?"

      • A:

        Hello tagboys3, we recommend cleaning the transducer, which can be located by referring to the manual. Please contact us if you need any more assistance. Thank you!

    • Q:

      "why does the tank empty light come on and shut the unit off, even when the tank is full"

      • A:

        Hello silvers5, take the tank out and you will see 2 wing nuts on the top turn them and the back part will lift off then you can clean it with vinegar and water. Please feel free to contact us again with any further questions. Thank you for shopping with us!

    • Q:

      "what is the water capacity that this unit holds?"

      • A:

        Hello terra1, The Bionaire ultrasonic humidifier uses 1.5 gallon of water. Please feel free to contact us again with any further questions. Thank you for shopping with us!

    • Q:

      "Where do I buy a new filter for the Bionaire Ultrasonic humidifier?"

      • A:

        Thank you for shopping with us cjleslie12. This model does not use a filter. Have a great day.

    • Q:

      "Is this warm & cool mist. Does it have an ionizer or any other parts that have to be replaced? Does it leave a white mist on furniture etc. HOW QUITE IS IT!!!!!"

      • A:

        According to the product reviews the humidifier is quiet, requires frequent cleaning, and there is no information provided regarding the temperature of the mist.

      • A:

        This unit is very quiet. There aren't any parts that need replacing, though cleaning for optimal humidity mist is required. If you use heavy tap water it will put the minerals in the air which will deposit on furniture. With regular house cleaning you won't notice. The temperature of the mist is dependent on the temperature of the water you put in. It does not heat the water before diffusing it to the air.

      Read more Read less

    Shopping Tips & Inspiration

    Shipping & Returns

    Contact Information

    Usually leaves our warehouse in 1-2 business days. *

    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
    Standard shipping details
    Expedited shipping details

    Standard Return Policy:

    Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

    FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

    For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.