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Boneco U300 Top-Fill Cool Ultrasonic Humidifier

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Boneco U300 Top-Fill Cool Ultrasonic Humidifier. View a larger version of this product image.
Boneco U300 Top-Fill Cool Ultrasonic Humidifier. View a larger version of this product image.
Boneco U300 Top-Fill Cool Ultrasonic Humidifier. View a larger version of this product image.
Boneco U300 Top-Fill Cool Ultrasonic Humidifier. View a larger version of this product image.
Boneco U300 Top-Fill Cool Ultrasonic Humidifier. View a larger version of this product image.
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about the product

The Boneco U300 Top-Fill Cool Ultrasonic Humidifier fills even large rooms with cleaner, more humidified air. Quiet operation makes it great for bedrooms or nurseries.
  • The Boneco U300 Top-Fill Cool Ultrasonic Humidifier is easier to use and maintain, thanks to its top-fill design
  • High output of up to 2.5 gal/day for fast humidification
  • Suitable for large rooms up to 540 sq. ft.
  • Cool mist humidification
  • Quiet operation and low energy consumption
  • Water empty indicator and automatic shutdown at low water level
  • Fragrance tray for use with essential oils
  • 1.3 gallon capacity
  • Cord measures 5' L
  • Plastic
  • A250 Aqua Pro 2-in-1 Water Filter and EZCal descaler included
  • Measures 12.12" L x 6.49" W x 12.79" H
  • 3-year manufacturer's warranty
  • Imported
  • Model 44722
  • skuId: 61730809

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Please be aware we've temporarily extended our delivery time frames due to Covid 19 precautions at our facilities. The extended time frames will be reflected in the estimated delivery date shown at checkout.

Free Standard Shipping on Orders Over $49. 

Free Standard Shipping with any online purchase of $49 or more (merchandise subtotal). Excluding store pick up items, gift cards, gift wrap charge, environmental handling fees, other applicable handling or administrative charges, and sales tax. Shipping surcharges on certain over-sized or heavy items still apply. These charges are indicated on the appropriate product information pages and will be displayed in the shipping subtotal of your order.

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Ratings & Reviews

Ratings Snapshot

37 reviews ·

Would Recommend

21 recommendations




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Most Helpful Positive Review
Works well, odd design choices DavidS ·
Recommended Not Recommended

I was torn about whether to give this item three or four stars. The good: It works quite well. It definitely adds humidity to the room,and doesn't create a puddle of water around itself like cheaper humidifiers do. It's very well made. It's solid and has a feel of "quality" to it. It makes a bit of noise, but nothing I can't sleep with - just a white-noise kind of hum. The odd: Some design choices the Boneco folks made are just strange. It has no rubber feet, so if you place it on a smooth surface, it tends to slide a bit. You really don't want what's essentially an expensive jug of water sliding off your nightstand. The on/off/power level control is a pain to use. It's a rotary control, but it's flush with the front of the machine, so you can't grasp it between your fingers and turn it. It has a very slight depression that you put your finger in and spin it (like dialing a rotary phone). But the depression is so slight that you have to press a bit to get traction. That pushes the whole machine across the table (no rubber feet, remember), so you have to hold it down with your other hand to keep it in place. Filling the device is a pain. The reservoir lifts off the top of the device. You lift it off, turn it upside-down, unscrew the filter, fill it up (through the opening the filter came out of), screw the filter back on, flip it over and replace it. A hatch on the top that you could fill from a pitcher would be so much simpler and easier.

Most Helpful Critical Review
Like the top fill is good until it breaks Swaye ·
Recommended Not Recommended

I bought this exactly 2 years ago. I have cleaned it and used new filtration cartridges and the EZ cal cleaner. I just spent a bunch of money replacing all these things and I can’t get the motor to engage to push the steam out. I like that I don’t have to carry it to the sink every time which is incredibly annoying with most humidifiers. It is an expensive piece though if it only lasts two years. I am going to talk to BBB instead of Boneco and sometimes they will trade them but if not, I might just get the smaller one to save money then.





Customer Reviews

Showing 8 out of 37 reviews



Only worked for 2 seasons. Sonia ·
Recommended Not Recommended

This humidifier worked great for 2 years. I used it for 3 months each year. When I plugged it in the 3rd year, nothing. It was cleaned and stored properly during the summer and fall months.

Best Humidifier BB&B Customer ·
Recommended Not Recommended

This is the perfect size for my studio apartment in New York City. It is easy to use and works the entire night.

defective Annie ·
Recommended Not Recommended

We plugged the humidifier in and it did not work! I think that the ultrasonic device was defective. It ended up working intermediately, but not reliably. I ended up returning the product and exchanging it for the h200 which will hopefully be a more reliable model.

Works so well I bought a 2nd one Paul ·
Recommended Not Recommended

It's easy to use. Easy to refill. Does the job. Bought the second one for my home office.

disappointed Poet ·
Recommended Not Recommended

I've purchased several humidifiers from this brand over the years., but was rather disappointed with this model. The smaller version has a removable chord which is a nice feature because you don't have to unplug from the outlet for cleaning. The smaller version also does not have a bright nightlight to light up the entire room at night. This nightlight feature, which is very bright, was a poorly thought out and unnecessary addition. If it must have a nigh light, please add the option to turn it off. After wasting far too much time on trying to rig up a system to block this bright, blue light, I have given up and will be returning the unit.

Its a little loud BB&B Customer ·
Recommended Not Recommended

The fan is not quiet. Cannot use it at night. Had to turn it off at night.. Very loud fan

Stoped working after 4 days Unhappy customer ·
Recommended Not Recommended

Did a lot of research and thought this would be an excellent humidifier but was sadly disappointed set the machine up properly and enjoyed it for three days and it stopped working.

Disappointed! SkyBBB Customer ·
Recommended Not Recommended

I just opened the U300 humidifier from the box after having ordered it online. I was disappointed because the filter stick and the instruction manual were both missing. Missing!! In addition, and more importantly, unlike the U200 (which I have used for a number of years), the tank part and the bottom part that contains the electrical parts DO NOT separate. I think this is a design flaw. I haven't used it but I would imagine that cleaning it would be quite tedious unless you were super careful not to get water into the air vent. Plus because of it's very large size and fairly heavy weight , cleaning would be cumbersome. I only purchased this item without seeing it up close as I assumed the design would be similar to the U200 and because I need a larger tank for a large room. I will probably have to return it and think of purchasing one that has a tank that I could clean without worrying about damaging the equipment. I hope this review helps anyone considering buying it.

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