Bionaire BU1300W-IUK Compact Ultrasonic Humidifier

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Product information

The Bionaire BU1300-IUK is a compact 1.4L cool mist humidifier treated with Microban Antimicrobial Product Protection that releases cool, refreshing moisture to stale indoor air. The BU1300-IUK uses a high frequency, oscillating transducer to break up the bond between water molecules, allowing them to be dispersed in the air.

With its rotating nozzle, integrated carry handle, space saving design and light weight it’s easy to use in any room in the home. It’s even got a night light for so you can operate it at night. Treated with Microban Antimicrobial Product Protection.

Airflow rate
4L cool mist / 24hrs
H23 x W23 x D14cm
Eligible for International Delivery
Maximum Room Size Information Size of the room the unit can work effectively in
Model name / number
Speeds available
Weight Information Unpackaged weight


  • UK delivery

    Standard delivery within 5 working days
    Named or Saturday UK delivery
    Named day UK delivery pre-10.30am
    Find out more
  • International delivery not available


We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Q & As

Rated 4.2 out of 5 by 31 reviewers.
Rated 4 out of 5 by works very well because of its shape,in two part awkward tohandele 22 July 2015
Rated 3 out of 5 by Not proven. Have got around the problem of wet surfaces by putting the humidifier under a fan. Makes the room even more noisey, but covers up the irregularity of its chugs,drips & growns.(ok for summer months, not so sure about winter) Had hoped it would help elevate blocked nose & sinuses. Can't say it has. 02 June 2015
Rated 5 out of 5 by very useful product prevents tickly cough & aids breathing. excellent humidifier. 10 February 2015
Rated 3 out of 5 by Noisy but adequate The humidifier works fairly well but you do need to have it reasonably close to where you are situated for maximum effect. I bought it to help with the dry nasal passages I have at night time: the jury is out on whether it has worked or not as perhaps it's too soon to tell? But not the miracle cure I was looking for. I shall persevere. I also found this product a bit on the noisy side: first there is the loud humming of the pump then the dripping or "plopping" of water droplets and finally the occasional burbling of the trapped air - all very distracting whilst I'm trying to drop off to sleep. As mentioned by others the night light is very bright. I have covered it in two layers of card and still it glows but it is an orange light so not as intrusive as say blue or green. I have also found that the humidifier has caused some damage/water marks to the chest of drawers it sits on so be warned - it's not leaking per se, I just think that it's the vapour - I have moved it right to the edge of the furniture now (but the damage is done unfortunately). I hope this helps but it's all subjective! 09 November 2014
Rated 3 out of 5 by Light is very annoying The light on this is quite bright and I had to cover it up in the end. I didnt really mind the noise and found it did work quite well. However is does need cleaning very often which is annoying as you then have to carry the bottom half of the unit to the bathroom and it has the plug attached etc. And it is a bit fiddly to get into all the nooks and crannies, a little brush would have been fab if it had been included. We emptied and cleaned ours out and packed it away due to house moving and about 3 months later when we unboxed it to moved the inside was not a pretty sight! So we had to bin it. I think if we feel the need to buy one again I'd get a more expensive model or try only using bottled water to see if it made a difference to cleaning it so often. 17 August 2014
Rated 5 out of 5 by Good product We have a newborn who sleeps very well in the room with this humidifier. My partner was suffering daily headaches and sinus pains, this humidifier has completely relieved him of the pain from day 1! It has been brilliant on hot days when the room temperature gets too high for baby, this can cool a room quite quickly. It is quite quiet, it does have light which serves as a night light, though it is very bright so we stand a card beside the humidifier to diffuse it. The reservoir lasts easily through the night, there was a slight (very slight) damp smell after a few weeks use, we popped a piece of silver in the reservoir and this is now gone, lovely fresh air. 04 June 2014
Rated 5 out of 5 by Does a great job We are actually using this in our office as it is far too dry. We have 3 units and they are doing a great job in increasing the humidity locally. Because it does not heat, it also makes the air feel nice and fresh too. It is silent and, apart from the "steam", you wouldn't notice it. Totally recommend 28 March 2014
Rated 4 out of 5 by Does it's Job Well ! This Unit Works Very well and I am Pleased With It ! Filling Can Be Fiddly and Wouldn't Suit The Informed ! 11 March 2014
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  • 2 year guarantee included

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More than 10 in stock