KOIOS Humidifiers for Bedroom – 4L Advanced Easy-Clean Top-Filling Design, Ultrasonic Cool Mist Humidifier with Intelligent Constant Humidity & Timer Function, 3 Mist Modes, BPA-Free

$99.99 $39.99

(17 customer reviews)
  • TOP-FILLING DESIGN FOR EASY CLEANING: This revolutionary design, in which KOIOS is leading the way, makes the humidifiers easy to refill and clean. Just remove the cover and directly add cool water or pull forward the water tank to add water. In addition, your hand can reach anywhere inside the tank, so any blots or dirt can be easily cleaned.
  • INTELLIGENT CONSTANT HUMIDITY: This humidifier is designed with three advanced functions: intelligent constant humidity function, sleep mode, and timer function. You can adjust the humidity setting from 45-90% in 5% increments, according to your preference. Based on scientific research, the incidence of arthritis increases significantly when the relative humidity changes more than 10%.
  • EFFICIENT MIST OUTPUT & 4L STANDARD CAPACITY: This KOIOS cool mist humidifier contains 3 mist modes: LOW-MEDIUM-HIGH. A 4L/1.06gal capacity provides long-lasting mist for 15-35 hours, and a max mist output of 300ml/hr can easily handle humidifying bedrooms, living rooms and even offices. Ultrasonic air diffusion produces very low noise (Less than 35dB) for quiet operation that even babies cannot hear.
  • MULTI-FUNCTION COOL MIST HUMIDIFIER: It features real-time humidity, anion function, sleep mode and auto shut-off. The installed humidity sensor detects the real-time indoor humidity level and shuts off when the desired humidity level of the surrounding environment is reached.
  • SUPER-QUIET UNIT: The ultrasonic cool mist humidifier adopts new low-noise designs and the silent fan (less than 35dB) reduces background noise. It’s a great choice for the home, bedroom, living room, air-conditioned rooms and baby’s room.

SKU: SHA1207 Category: Tag:


Koios humidifier decreases the risk of illness and disease and helps relieve dry, irritated skin, to ensure your home’s optimal humidity level. With a large 4L tank, powerful mist output, this aesthetically pleasing humidifier is packed with smart features that make it the perfect solution for improving your room air quality.

Adjustable Mist Levels

3 adjustable mist levels.
Control the mist amount with low,middle,and high settings.

​Sleep Mode

Indicator light will be dim and whisper quiet, and offer a comfortable environment for you, when the sleep mode is open.

​Easy to Clean

Because of the wide opening design, you can clean every nook and cranny of the water tank completely by your hand directly, instead of harmful chemical agents.

​Timing Control

Features a built-in timer that can be programmed anywhere from 1 to 12 hours; the humidifier will automatically turn off when the timer has finished counting down.

Solutions to EI code
1.Take out the brush below the water tank and try to start it again, sometimes the brush is not in the proper position.
2.Pour enough water into the tank and set aside for 30 seconds to 60 seconds, let the water goes down to touch the atomized tablets, then power on the machine.
3.Please check if the water tank is placed into the base completely.
4.Please note that do not pour water into the tank through the mist outlet which will stop the running of the machine.
If you can not still solve the problem, please message or email.

17 reviews for KOIOS Humidifiers for Bedroom – 4L Advanced Easy-Clean Top-Filling Design, Ultrasonic Cool Mist Humidifier with Intelligent Constant Humidity & Timer Function, 3 Mist Modes, BPA-Free

  1. Amazon Customer

    Five Stars
    Nice product and very fast responding customer service.

  2. K Mitchell

    Five Stars
    Exceeded expectations

  3. Xela Morales

    Five Stars
    Excellent Humidifier

  4. phoebe

    Easy to use and quiet
    I bought this for my mom’s room, she is very dry skin in winter in the heat room, and it’s very hard to breath in the night, I am so happy to have this humidifier, My mom’s room is big size, this can works very well for the size like 400~500 SQ FT, and it is very easy to control, has 6 modes and 3 mist levels. Sleep mode is comfortable in the night. The water tank very to clean, and build in cotton filter purify water before it is diffused. My mom loves this very much. helps a lot in heat room in winter. wonderful

  5. gabaker

    Five Stars
    As described.

  6. Alesia Blanke

    Easy to make adjustments
    Exactly what I was looking for. Runs quiet, and for a couple of days. Easy to make adjustments, nice features.

  7. T. Chapman

    Works great. As advertised.
    Works great. As advertised. A full water tank lasts 2-3 days on lower setting. Just right for us

  8. Peggy A.

    Nice humidifier
    This is my third humidifier and definitely the best. Very easy to fill and quiet. I do wish I could shut the lights completely off.

  9. MKMcCartney

    Five Stars
    Love. Love. Love. This is one of the best humidifiers I have ever used.

  10. J. Young

    Great for plants!
    I use this humidifier for some of my house plants that like high humidity. It has several settings to allow me to control the humidity level. I like being able to fill it from the top.

  11. SCM

    So far so good, I had to drill a small hole in …
    So far so good, I had to drill a small hole in the top handle area because it was collecting water. It took about 5 days to get the humidity up to 17% from 9% in a 400 sq ft room. It is very quiet.


    it’s nice and quiet.
    So far so good, it’s nice and quiet. The 4l water tank can last long more than 12 hrs. it has decent mist output and will notify you when the water near empty.

  13. Karen Gallardo

    Saved my life!
    This is an amazing product! It saved my life! No more awful nights with my poor daughter, she is having better nights since we got this humidifier! I highly recommend It!

  14. Michael

    This has been an excellent humidifier to have around the house
    This has been an excellent humidifier to have around the house. It does a good job keeping a bedroom at a pleasant humidity level. It is very quiet, and I can run it in the bedroom at night and it will not bother me at all. The reservoir is also the perfect size – we run the humidifier at night for sleeping and a full tank can last three nights. But it’s not so big that it’s bulky and heavy. I also like the controls, they are intuitive and easy to use. The humidity sensor is a nice bonus. It’s also pretty easy to clean, all of the parts are accessible.

  15. jraj

    Five Stars
    Best cool mist humidifier I ever used. Hope it last for few years.

  16. Simon

    Easy to Use and Clean
    Bought this Humidifier last week, It is better than what I expect. All you need is open the top cover, take out the bucket fill up with water and put it back. that is all you need to do. Easy and simple. and you could control the room moisture. One more thing I like the best is the floor are dry after use, unlike some other brand I have to wipe the floor every morning,the floor is wet around the machine after use.

  17. Den

Add a review

Your email address will not be published. Required fields are marked *