Tower XL – 2-in-1 Humidifier & Diffuser, 2 Liter Water Capacity, White

(70 customer reviews)


Tower XL – 2-in-1 Humidifier & Diffuser, 2 Liter Water Capacity, White


(70 customer reviews)

Learn about what makes the Tower XL unique here:

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The Tower XL is the world’s first open-top humidifier and essential oil aromatherapy diffuser. The Tower XL has a 2-liter water capacity, which is 20x the size of an average diffuser (100 ml). It is built with state-of-the-art, medical-grade white plastic to ensure no corrosion occurs. The unique patent-pending air funnel ensures smooth bubble mist flow, which results in a mist volume that is up to 10x the average diffuser. Fill it, shut it, and forget it. Due to its large tank size, the Tower XL can keep diffusing all night long filling your entire space with moist aroma. This means you can get a peaceful night’s sleep without having to wake up every couple of hours to refill the tank.

Power Supply:

Wall Outlet

Special Features:

Large 2 Liter Water Capacity
Mist Lasts up to 10 Hours

Water Capacity:

– 2 Liters

Modes of Operation:

Press “+” Button: Increase Mist

Press “-” Button: Decrease Mist

Press “LED” Button: Turn On/Off LED


– White Tower 2 Liter Water Capacity Ultrasonic Diffuser

– U/L Certified Power Adapter


Overheating Protection + Auto Shut Off


– Standard Wall Plug


  1. Remove the lid and simply fill with water until slightly below the line, then add 10-20 drops of your favorite GuruNanda Essential Oils.
  2. Place the lid back on the diffuser.
  3. Press the power button once for continuous mode and color-changing lights.
  4. Press the “+” button to increase the mist. (Mist lasts up to 6-8 hours)
  5. Press the “-” button to decrease the mist. (Mist lasts up to 12 hours)
  6. Press the “LED” button to turn the color changing LED light on/off.


  • To ensure the diffuser works properly, we recommend cleaning the diffuser between changing oils or every 3 days.
  • Disconnect the diffuser unit from the power source before cleaning.
  • Use a cloth to clean exterior part of the unit with water.
  • Use a cotton swab or cloth to clean the water tank.
  • Keep water from entering the vent.
  • Do not use detergents, solvents or abrasive agents to clean the diffuser unit.
  • Use the diffuser unit on a dry and even surface.

How It Works:

The ultrasonic diffuser creates vibrations that are carried to the surface where oil is floating. The oil floating on the top of the water gets broken down, and then diffused into the air, filling the surrounding space. The silent ultrasonic technology used in this diffuser will fill your environment with the stimulating effects of pure essential oils.

TOWER XL Guide to Successful Operation and Troubleshooting tips

This machine will work well if the floating piece is properly assembled.  You only need 1 of the floating pieces installed at a time. The other 2, are just replacements to keep when needed.

If your machine is working with small mist volume or no mist, please check that the water tank cover is in place, and the floating piece is assembled correctly.  You can push the + button to increase the mist flow.

When the power panel is blinking in red, that means you will need to pour more water into the tank.  After blinking for 1 min, the diffuser will turn off automatically.

After filling with sufficient water volume (water must be above the silver dot – which is water level detector), press the power button. The machine will start misting after 10 secs.  There are 3 different misting modes High/Medium/Low. By pressing “+” or “-” you are able to adjust the misting volume.

The LED button will allow you to switch between alternating color changing lights or to turn the lights OFF.  Again, keep in mind that with insufficient water level the control panel button will keep blinking in red. With the Air Funnel and floating piece not properly assembled the diffuser can’t mist properly.

​Control panel is powered by touching sensor, and touching control panel with wet hands might cause errors.

How Troubleshoot Your TOWER XL

If your machine constantly blinks red please try these tips as we have found the censor may need to be reset:

  • Unplug the machine, empty out the water.
  • Plug it back in but do not turn on yet.
  • The light on the front will flash white, but do not turn on yet.
  • Fill with water to the middle of the tank or close to the max fill line (about an inch and a half from the fill line as the plastic tubing you insert will raise the water a bit) and be sure it’s not too low as that little metal sensor at the bottom is sensitive.
  • Put the tower together, with the insert and the top.
  • Then press power.
  • It should work well after doing this resetting

If you have no power to the unit after having used it before, this means the power source has gotten wet and the diffuser will need to dry out for a few days, unplugged and with the lid off.

Email GuruNanda Consumer Affairs Department at for any further assistance you may need.


Additional information

Weight4 lbs

Remote Controlled Tower XL, Tower XL – No Remote

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70 reviews for Tower XL – 2-in-1 Humidifier & Diffuser, 2 Liter Water Capacity, White

  1. Jeffrey S.

    This is a great item. I bought for off then. Three for our offices and one for my yoga instructor. It works well and the larger volume is helpful.

  2. Kimberly M.

    This is the most amazing diffuser/humidifier that I’ve ever had. I never want to leave my home after smelling all kinds of beautiful aromas throughout the house with lemongrass being my favorite! I’m so thankful that I was about to catch this item on sale. My only wish is that I had purchased more than one. Love!!!

  3. Amy D.

    I love the large capacity, so that I don’t need to refill it as often. I love that it is a diffuser and humidifier all-in-one. I also love the design.

  4. Jeanie S.

    I had been looking for a diffuser/humidifier for months but most had to be refilled often and looked the same. This products works all day & all night. It make no sound at all so is perfect for sleeping. I like the fact that you can turn off the lighting. Sometimes I want a night light, sometimes I don’t. The adjustment for the flow of moisture is wonderful. My husband and I were both sick for the past week and I know this product helped with our recovery, keeping the air moist and very breathable in the otherwise dry house. Plus adding the essential oils kept our house smelling great! We live in a small 600 square ft cottage and this unit works wonderfully for our entire house.

  5. Margaret Frances M.

    I really like this size mister.
    You can turn it on and be confident that it will work all night.

  6. Michael N.

    This is an incredible product. I have a large home over 5000 square feet. When I fill the tower in the am the entire house gets those incredible smells. I was hooked on day one. I ordered a second one and will order a third as a gift.

  7. Debbie T.

    Love it… have it diffusing in the bedroom and am very pleased!!! Would definitely recommend and it is larger so I don’t have to refill every day.

  8. Amy H.

    It works great and I like the neat lights on it, I can see my way around at night. I haven’t had to clean it yet but it is big enough to get your hand in there at least. I was wondering what the two floats with the brush were for. Does the float wear out and have to be replaced?

  9. Kim

    I was excited to try the Tower XL. I received the unit, followed instructions exactly, including troubleshooting recommendations but never got past a blinking red light and a non-working tower. Gurunanda quickly sent me a replacement tower which I received today. I followed all instructions exactly, turned it on and again get nothing but a blinking red light.

  10. John P.

    This is my 6th GuruNanda diffuser and although I like all of them – it’s my favourite one yet! The huge capacity is so convenient and the huge amount of mist that it puts forth is just great! I’m very happy with this purchase and recommend it highly.

  11. Minette G.

    While I love the size and how easy it is to use and operate, the fact that every time you press the wheel to change function, the high pitched “beep” freaks my animals out! I hope in time they will get used to it. I also noticed the aroma from the oils does not last as long as the unit is on, something I s don’t experience with my other diffusers.

  12. Jean W.

    Great bc it holds 2 liters! Nice to have humidifier plus oil diffuser. Will run a long time on intermittent, 2 days!

  13. Mandy S.

    This humidifier diffuser is perfect it’s exactly what I was looking for but could never find. It’s the perfect size, love that you can turn the light off. This really does work great and lasted all through the night without turning off. I would totally recommend so happy I took advantage of the half off sale.

  14. Angela C.

    I love how long you can operate it…no more shutting off in middle of the night!

  15. Olivia F.

    Just had to add a picture of it, for some reason it did nit do it the first time. But still loving ? my Tower XL

  16. Olivia F.

    Wow I have always loved GuruNanda diffusers ever since I saw the tower that I had bought 2 years ago from Walmart and from then on never wanted any other diffuser. So when I saw the tower XL I just had to have it and when the Black Friday deal with 50% off was offered how could I say no. All in all I simply love this I used it as soon as I received it and it’s been truly amazing. No refilling every few hours which is exactly how it should be. Thank you GuruNanda for making such an amazing product.

  17. Robert V.

    We bought 4 WHITE TOWER XL

    Genius invention, Every home, needs this, treat yourself to bliss!

    What I like the most, is no filling no the tank ever 4 hours this is my first day. I will have more soon!

    Happy Customer,


  18. Matt L.

    This thing is a workhorse. I’ve basically had it running for 7 days in a row, I just refill the water once a day and I’m good. I bought a diffuser from Amazon and it kept turning off every hour—I hated that. But no more! I didn’t wanna get a humidifier/diffuser because I’ve noticed that humidifiers usually have to be picked up upside down, but this one is easy, you just remove the cover, add the oils, and you’re ready to roll.

  19. Tori M.

    I live in Chicago and it’s been FREEZing for the last few weeks. I have heaters at the house running on all 6 cylinders because I can’t stand how cold it gets. The air gets really dry too. My husband has asthma problems so I snatched this humidifier diffuser when I saw it in a facebook ad. My husband is hooked! Every night he adds a little bit of eucalyptus and or breathe easy and it runs alll night. Since it can take up to 2 liters in water we don’t have to get up in the middle of the night to replace the water. My husband’s asthma is more managable now and he gets a lot of relief from this diffuser. There’s also more moisture in the air now and the dryness was unbearable before. We already wanted a humidifier but now we get benefits of essential oils too. This thing makes me happy.

  20. Katie L.

    Love this diffuser, I got the Top 6 blends with the Tower XL and it keeps diffusing the entire day on minimum mode… Love the breathe easy blend with it, keeps the entire room humidified.. It looks super pretty at the entrance of my office and the everyone is mesmerized by it. Some of my co-workers bought it already! Thank you for the wonderful products Gurunanda!