10 Best Diffusers for Large Spaces

If you are having the stress of daily life, it’s time to consider using essential oils. They can help to get a much-needed boost at the end of each day. Then, you can increase your energy as well as relieve your stress.

In order to disperse essential oils, you need a diffuser that helps to make the oils natural fragrance in your room. In this article, we will introduce you the best essential oil diffusers for large rooms on the market now.

Why Should You Use an Essential Oil Diffuser?

Here are some benefits you can get from using an essential oil diffuser in your home:

Helps sleep better

If it’s hard for you to fall or stay asleep at night, you will need an essential oil diffuser that can create a conducive environment so you can get a peaceful sleep. You should choose scents such as ylang-ylang, lavender, valerian, or vetiver. All of them are great in helping soothe you. They promise to give you a restful night’s sleep.

Stress reliever

Once you have stress, you may feel restless and unsettled. Like being said that, it’s time to get an essential oil diffuser in order to create a calming effect in your home. If you want to relieve anxiety and promote calm, you can consider using oils such as bergamot, rose, chamomile, or frankincense.

Ward off illness

The fact is that essential oils include powerful antimicrobials. Therefore, they may be used to kill germs lurking in your home. If you are looking for essential oils to boost your immunity, you can choose Oregano, lemon, or peppermint. These oils also can protect you from catching a cold or flu.

Pain Relief

Many people choose to apply essential oils directly onto their skin. However, it will be much more efficient when using a diffuser. This can help to relieve pain effectively. In fact, it can be able to help combat and relieve persistent pain. Then, you needn’t worry about headaches, overworked muscles, and sore joints.

Repel Insects

Another great benefit of an essential oil diffuser is to repel insects. Actually, it can help to repel pesky bugs such as flies, mosquitoes, as well as other household pests.

Humidifies the air

For some diffusers, they require water and the essential oil when using. That’s why the air in the home can become humidified due to the atomization of the water. You know dry air is normally related to various respiratory tract issues. Even, it can cause dry skin as well.

Freshen up the air

Essential oils can help to freshen the air in in the home while you needn’t worry about commercial air fresheners used in it. Essential oils provide softer scents compared to commercial air fresheners. You only need to put a scent you like in the diffuser and enjoy it.

Safe alternative to candles and incense

You may not know most scented candles are made from chemicals like toluene and benzene. They are actually harmful to your brain, nervous system, and your lungs. Although there are still high-quality candles made with no toxic chemicals, they are very expensive. Therefore, it’s best to choose a diffuser as an excellent alternative to candles.

Things to Consider When Choosing an Essential Oil Diffuser


If you want to buy a diffuser for your large spaces, you should choose ones with a powerful motor because it can be able to spread the essential oil in a large area.

When it comes to a silent-operating diffuser, it’s best to buy ultrasonic diffusers. In fact, these systems are better than the nebulizing diffusers.


We recommend you to look for a diffuser with a built-in timer. It can help you save the essential oil and energy, especially when you don’t remember to switch it off.

In order to prevent wastage, it’s essential to set the maximum time of operation. Also, you can choose models with intermittent timers. It’s easy to set it to run for hours or less within an hour.

Other Factors

Aside from the above factors, you should also consider the water capacity of the diffuser. This is really important when you want to buy a diffuser for large spaces.

Other models also come with an essential oil level indicator that helps to determine the amount of essential oil diffused in a specific amount of time.

Top 10 Diffusers for Large Spaces

1. InnooCare Ultrasonic Cool Mist Diffuser

Many customers choose this diffuser because it’s easy to use and clean. It can be able to produce stronger and cool essential oil sprays. Therefore, you can choose it for larger areas.

There are five functions found in this device. They include an air purifier, aroma diffuser, humidifier, ionizer, and nightlight lamp. It offers customers a 30-day 100% refund guarantee and a 1-year replacement warranty.

Also, the diffuser comes with a free life-time after-sale support. Plus, it allows you to adjust the amount of mist produced based on your liking.

You can choose this product for your baby room, bedroom, or even your office. It can be able to work for 1, 2, or 3 hours continuously. It is packed with a lamp changing into 7 colors.

This system promises to give you a better and calmer sleep. Moreover, you can also breathe a fresher as well as fragrant air.

2. URPOWER 350 ml Aromatherapy Essential Oil Diffuser

If you want to get a light and portable diffuser, you can choose the URPPOWER. It is powered by ultrasonic technology. Moreover, this option is also very quiet. It can be able to work with all types of essential oils.

It is known for its ultrasonic technology feature. Besides, there is a water tank with 350 ml of volume capacity. Therefore, it can be able to run for 9 hours. You can use it to cover a large area of 320 square feet.

Also, it comes with 7 color changing led lamps that are to adjust the mist intensity into strong or weak.
There is 1 350 ml diffuser, 1 user manual, and 1 charger adapter found in the full package of this product.

However, it doesn’t have a measuring cup. It also doesn’t come with intermittent mist mode feature.

3. Tenswall 400ml Aromatherapy Essential Oil Diffuser

This option is a large capacity essential oil diffuser. It can be able to work up to 10-15 hours straight. You can put it as a decorative item wherever you want. The diffuser comes with 7 colors of LED lights in addition to dim and bright features.

It is equipped with an auto turn-off feature. Therefore, you needn’t worry about it when it is below the minimum mark of the water level of the tank.

This product is designed with two mist modes. It can be able to work continuously for up to 10 hours.

Additionally, the option comes with a timer that allows you to set into 4 different modes. Thanks to advanced ultrasonic technology, this essential oil diffuser is very quiet. It promises to give you a deep and peaceful sleep while in use.

This is a very light diffuser because it’s made of plastic. Therefore, it’s a great choice for those who are looking for a compact and handy diffuser.

4. TaoTronics Essential Oil Diffuser

This essential oil diffuser lets you smell the joy of fragrant air all day long. It is designed with an ultrasonic technology that can be able to produce ultrafine mists to the air. Also, the device allows you to adjust the mists into strong or light mists.

You can use this diffuser continuously for 8 hours straight. You can also set it to 1 hour, 3 hours, and 6 hours operation.

It’s safe to use since it can automatically shut off in the low level of water. Moreover, you can also get the higher relaxation benefits of the essential oils. There are LED lights of 7 colors.

It comes with two parts that you can easily disassemble to clean. For this diffuser, it’s best to use only water-soluble essential oils. Then, you will get a better experience. You will receive 1 TaoTronics Essential Oil diffuser, 1 measuring cup, 1 power adapter, and 1 user manual from the package.

5. OliveTech Arome Essential Oil Diffuser/Cool Mist Humidifier

It’s known for a unique design with elegance. It is even used as a perfect decoration in your bedroom, your office, living room, spa, or yoga space. It is designed with a 400ml water capacity tank, so it can work for up to 8-12 hours while you needn’t refill.

Like the previous product, this is also a safe choice because of the ability to turn off automatically. It comes with a timer that allows you to set to 1, 3, 6 hours. Besides, it’s easy to adjust the amount of mist for a strong or weak mist.

Additionally, this diffuser comes with a LED lamp changing into 7 colors with bright and dim features. You will receive 1 diffuser (400ml), 1 user manual, 1 measuring cup, and 1 adapter from the package.

If you want to look for a lightweight option, it’s just for you. Actually, it only weighs around 1 pound. That’s why it’s not hard to transfer within the area.

Furthermore, you will also get 45 days money back guarantee in addition to an 18 months warranty.

6. Aromacare Large Essential Oil Diffuser

This unit is capable of operating up to 18 hours. This option is perfect for those who are looking for a quiet noise thanks to a noise level below 35 dB. You will get both high and low mist modes from this diffuser.

Moreover, this product offers subtle coloring and dim lighting. These features allow it to blend into the background. You can use it for covering at least 200 square feet.

Last, the manufacturer will give you a 45-day money-back warranty.

7. ASAKUKI 700ml Premium Essential Oil Diffuser

This is the best essential oil diffuser for large room. It is equipped with a 700 mL water tank. You can easily clean this water tank. More importantly, it’s simple to maintain this diffuser. It’s important to clean the tank regularly in order to avoid sending bacteria into the air.

It can be able to operate for hours. However, it can still shut off automatically if the water is at a low level.

Then, it is designed with an LED light, so you can control the color and the brightness. Besides, it comes with three timed settings.

Last, you will get a six-month money-back guarantee aside from a one-year warranty.

8. Square Aromatherapy Essential Oil Diffuser Humidifier by TomCare

This is also one of the best choices when it comes to the best diffusers for large spaces. It can operate up to 20 hours in low mist. For running in high mist mode, it can run for 10 hours.

It includes a water tank made of BPA-free plastic. Besides, there are similar features compared to other comparable diffusers.

The diffuser allows you to control the brightness as well as the color of the LED light. Plus, it’s easy to set it to run for 1, 3, and six hours.

9. Signstek 1500ML 1.5L Ultrasonic Air Humidifier LED Color Changing Aroma Oil Diffuser

This product is known for its striking design. When mentioning to the tank, there are two versions, including one with a windmill and another with a dragonfly.

You can use this diffuser to cover over 200 square feet. It can be able to put out 250 mL per hour of mist. Therefore, it can operate for about six hours while it can fill your room very quickly.

10. Aromis Wood and Glass Aromatherapy Diffuser

This option allows you to cover up to 30 square feet. It ensures to give you the fragrance of pure essential oil.

With this diffuser, you can choose a single oil or even a blend of your favorite scents.

Like other diffusers, it is equipped with a glass reservoir and a wood base. You will receive a one-year warranty from the manufacturer.

If there are any problems related to parts, replacement, and labor, you will just need to cost for replacement parts after one year.


There are several benefits of using essential oil diffusers as we mentioned above. Indeed, it can help to improve your mood. Also, it can be used to make your home smell more welcoming. Moreover, it can help to battle cold and flu season as well.

Hopefully, you can find the perfect essential oil diffusers for large rooms after our reviews. All of them have been listed as the best options on the market today. Happy shopping!