Muji Aroma Diffuser 11SS Review

Aromatherapy is becoming more popular these days than ever. Whether you’re a beginner or a long-time enthusiast of aromatherapy, you’d surely want to have a good diffuser to fill your room with your favorite scent. In this Muji Aroma Diffuser 11SS review, we’ll take a look at the features and specs of this device.

all types of muji diffuser

By knowing what to expect from this ultrasonic diffuser, you will know better if this is the one you’re looking for. As there are many diffusers that you can choose from, it can get quite confusing. Just how do you know what makes a good diffuser? We’ll cover that here. But first, let’s find out some of the things you need to consider before choosing a diffuser.

What to Know Before You Buy a Diffuser

There are several factors that you have to think about before you buy your own essential oil diffuser. To ensure that you will have the best aromatherapy experience, you need to know if the diffuser you’re considering will fit your needs.

Some of the things to ask are how big is the room where you’ll place the diffuser? What type of diffuser are you going to choose? How much are you willing to spend on it? And what particular design do you have in mind so that the diffuser will match your home’s style? Let’s look at the factors to consider.

Type of Diffuser

There are four popular types of diffusers: Ultrasonic, Nebulizing, Heat, and Evaporative diffusers. The Muji Aroma Diffuser 11SS is an ultrasonic diffuser. It means that it needs water to function so it can diffuse the scent into the atmosphere.

The way that it works is that the device produces high-frequency vibrations. It then disperses the mist into your room. Ultrasonic diffusers are the most popular type because of how safe it is to use. It is also quiet and easy to clean and maintain.

Related: Nebulizer Diffuser Vs. Ultrasonic Diffuser

Area Coverage & Device Settings

Think of the room’s size where you intend to use your diffuser. If the device has a 300ml or less for its water reservoir, then it is suitable for small spaces such as bedrooms, offices, and bathrooms. Ultrasonic diffusers like the Muji Aroma Diffuser 11SS can cover larger spaces.

Another feature that the ultrasonic diffusers are famous for is the various settings and options. For example, you set its timer to 1, 3, or 6 hours. It also usually has a feature for auto-shutoff when there’s no more water in the reservoir.

If you’re looking for a diffuser designed for large spaces, read my full review here.

Price & Product Guarantee

The price is a major factor when it comes to the decision we make when buying products. The prices of diffusers vary depending on the brand, features, and capacity. No matter how affordable or how expensive your choice is going to be, remember to check the warranty of the manufacturer for broken parts or a defective device.

Muji Aroma Diffuser 11SS

The Muji Diffuser is a product that’s popular in Japan as well as in Asia. Muji is an international brand that produces many interesting products for home use. It even makes Japanese-inspired furnishings. Muji is mainly popular for its diffusers such as the Aroma Diffuser 11SS.

Features & Benefits

Before purchasing the Muji Diffuser, getting confused as to why it’s not turning on, and returning it as a defective item, you should know that you only need to hold the power or “mist” button for a few seconds. Apparently, many got confused about this part of the product. But other than that, you can expect the Muji Aroma Diffuser 11SS to work smoothly.

One of the first things you’ll like about this diffuser is that it emits a warm glow if you choose to turn on its lights. It’s perfect for your bedroom and for reading. The light is sufficient that you won’t have trouble reading and it’s not too bright either. The six LED lights found inside, as well as the design of its outer casing, produce this soft glow.

Another feature that’s nice about the Muji Diffuser is that you can turn the lid to a full 360 degrees. This way, you can point the mist to the direction that you want and you don’t even have to move the entire unit.

Since the Muji Aroma Diffuser 11SS is an ultrasonic one, it has a plate at the bottom that vibrates. This vibration then generates a fine mist of water and essential oils. You don’t have to worry about heat because it doesn’t need it. The oils will retain its properties. It’s also safe to use even if you have children or pets. Just make sure that they don’t knock it over.

Specs and Technical Details

There are four timer settings that you can choose from with the Muji Aroma Diffuser 11SS. You may select the 30, 60, 120, or 180-minute timers. The diffuser can run continuously for 3 hours and it will use all of the water in its 100ml reservoir.

There’s a button that controls the light of the diffuser. You can set it to Low or High. There’s also an option to turn the light off if that’s what you prefer. The “Mist” button found in front of the unit is the power button and it’s also the button you’ll use for setting the timer. To turn off the diffuser, you need to hold the button for a few seconds. You’ll know that it’s turned off when you hear a beep.

When you buy a Muji Aroma Diffuser 11SS, you’ll get one unit of the diffuser, a measuring cup, and a power adapter. Since it’s a Japanese product, it’s much better if you check the details of the product so that you’ll know that the adapter you’ll get is correct.

What Happens if the Diffuser Stops Working?

You may encounter some problems along the way. If by any chance, you get a unit that has a manual in the Japanese language, then you’ll have a hard time figuring out what wrong with your diffuser. Here are some of the common reasons why the unit may not be working properly.

  • Check the plug if it is inserted into the socket snugly.
  • Check for loose or damaged wires.
  • Inspect the water level in the device. The diffuser automatically shuts off when it detects that there’s not enough water.
  • Clean the diffuser regularly. There’s usually a buildup of debris and dirt that may be causing the issue.

What Do People Think About the Muji Diffuser?

Most of the users only had a problem with the power button because they didn’t know they had to hold until it turns on or turns off. Other than that, most of the reviews about the Muji Aroma Diffuser 11SS are positive.

The diffuser is very easy to use as it only has a couple of steps that you need to take. The first is to open or close the cover. The second is to add or discard water. Easy as that! Let’s take a look at what users have to say about the Muji Diffuser.


While the Muji Aroma Diffuser 11SS is a great unit for its price, you may still want to know what your options are. Here are some of the other similar products that you may also like.

  • Asakuki 5-in-1 Aromatherapy Device – This diffuser has a 500ml capacity. It is also an ultrasonic diffuser that has multifunctional features. There are 7 different colors for its lights, various modes for diffusing mist and an auto-switch so it won’t overheat.
  • The Essential Wellness Ultrasonic Diffuser – You can expect this device to be simple as well as easy to use. You can choose your favorite essential oils for this 300ml diffuser and it will work perfectly. It has four timer settings as well as seven changing colors.
  • URPOWER 2nd Gen Ultrasonic Diffuser – If you want to take a diffuser with you to other parts of the house or office, this unit is among the best options because it is easily portable. With a 300ml capacity, you can use this diffuser for up to 8 hours. It also has changing colors, timer settings, and auto shut-off.

These three are highly recommended by many users. Their prices are almost similar. They only vary in design, style, and some of the features like color and time setting. You can choose ones that will suit your needs best. To know more about these alternative products, be sure to check them out so you can be better informed as a consumer.


The Muji Aroma Diffuser 11SS is a simple device that is packed with really good features. It is lightweight and its design can easily blend into your room’s style. It’s definitely a diffuser that you should consider if you’re going to buy one.

If you want to learn more about the Muji Diffuser, you can click here. And if you have some experiences to share about this unit and other diffusers, don’t hesitate to share it with us. We’d love to know about it!

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Grace Young

I love candles! I have personally tried over 100 brands of candles. The total burn time of these candles is over 5000 hours. I also talk about essential oil diffusers and reed diffusers. Essential oil diffusers and diffusers are also an important part of the scent in my home.

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