Hunter 31004 Ultrasonic Humidifier for Small Rooms

Today: $37.40
Out of stock
  • Enter your e-mail address, we will notify you if it comes back in stock.

Place this compact ultrasonic humidifier in any room up to 160 square feet, and never worry about changing its permanent filter. The unit runs quietly, and a germ shield prevents bacteria and mold from forming inside the humidifier.


ITEM#: 13115945

Moisturize the very air you breathe with this ultrasonic small room humidifier from Hunter Fan. This transparent humidifier has an 18 hour run time and a wick-free operation.

  • Small room ultrasonic humidifier
  • 18 hour run time
  • Germ Shield - Microbian antimicrobial properties helps prevent odor-causing bacteria, mold and mildew on plastic parts
  • Wick-free operation
  • 120 Volts
  • Hamilton Beach True Air Allergen Reducer
  • Compact
  • Quiet operation
  • Use it horizontally or vertically
  • 3 speeds
  • Never touch a dirty filter again
  • Permanent 99-percent HEPA-grade filter
  • Effective performance for large 160-square foot rooms
  • Dimensions: 13.5 inches high x 8.5 inches long x 6 inches wide
  • Weight: 5 pounds
  • Materials: Plastic
  • Model: 31004


Color Green Tan
Material Plastic
Control Electronic
Motor Type Motor Driven
Recommended Room Size Less than 100 sq. ft.
Dimensions See product description
Materials plastic
Model Number 31004

Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Just like all the life on it

    Just like everything else made this breaks or stops working just outside of the year warranty period. The motor made a weird, loud humming sound before it went kaput. Cheap. I rather pay more and know that the parts are quality. I buy things like this (and toasters, vacuums and so on) these days knowing that they won't last long.

    Read More
  • Just didn't work for the area

    It did not work for the area we needed it in. We purchased a Air Purifier instead.

    Read More
  • Works as advertised - good value

    I"ve been using this humidifier for just about a week, and overall, I'm very satisfied. The first night, I set it up on the carpeted floor of the bedroom, on a towel. Bad idea! The mist floated to the carpet beyond the towel, and got the carpet quite wet. Moved the humidifier to the bathroom counter, and this solved the problem - there was no sign of wetness on anything. I guessed that the mist needed some space to get absorbed into the air, and that's what happened when I moved it to the counter. Could be a problem, though, if you don't have an elevated water-proof surface - for example, a wooden dresser might not be a good place to put it. As for how well the air is getting humidified, I haven't been able to tell. When it gets colder out, and the natural humidity drops, I should be able to tell whether this humidifier cranks out enough mist for the room I'm using it in. But so far, so good.

    Read More
  • Great product, wrong picture shown,

    Great product, just was confusing to open and see something utterly different than shown, other than that all is well. It works as stated with no filter needed, just a weekly disinfection with a white vinegar solution.. easy to clean, and easy to fill. Does not drip water everywhere and does the job for a medium sized room.

    Read More
  • Positive review

    The Hunter humidifier works well. My apt was very dry-good choice. Very quiet and easy to work with. I would definitely recommend this Product. To others. Price was right too!!

    Read More
  • Hunter 31004 Ultrasonic

    Living in a cold climate the ease of the Hunter 31004 Ultrasonic for use at night is great. Runs 10-12 hours on one filling of water. NO FILTERS which is great. Greeat size for bedside table. Recommended to my family members.

    Read More
  • Small Room Humidifier

    This is a great small humidifier. It's very quiet while getting the job done. I love the fact that it doesn't need a filter. The knob that turns the humidifier on has different positions to adjust the moisture needed for your room. Cleaning it weekly is no big deal. I'm very happy with this product.

    Read More
  • not so good

    It broke within 40 days and won't take it back. The dial doesn't spin to turn on. It wasn't even used daily and broke within 40 days! They won't take it back so I'll have to buy another one somewhere else. When it worked it was good.

    Read More
  • Defective

    Waste if money did not work Returned twice knob broke on the first one second one leaked water

    Read More
  • Hotel Living

    I travel weekly, and spend weeks in hotels with very dry air. This machine is on every night while I am in the hotel. When I wake up in the morning, no more dry nose and I can breathe! I am very pleased with this product.

    Read More

Questions & Answers

Get your product questions answered right here.
  • does this have aromatherapy?

  • does this have a light?

  • Is this a cool mist or warm mist?

    • It would depend on the temp. of the water that you put into the machine, but typically it would be a cold mist.

  • Does this unit have an automatic off when dry?


Shopping Guides

Shipping & Returns

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.

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

* 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.