To begin with, if you have been looking to spread more fragrance, then diffusers will be the next thing you will be looking forth to have. Diffusers are essential in creating a more soothing and a relaxed space around you whether it be at your personal location, workplace, studio, office, living room, bathroom, bedroom or any other place. However, in some instances, with the need for covering large areas, there might be a challenge of the diffuser spreading the fragrance all around the corners of the large area and reaching every point.

Therefore, large diffusers become essential in meeting the needs of having the fragrance spreading all points in the large room you need it. This will go a long way in not only affecting your emotions, but it will also affect your moods and the nervous system through the soothing feeling. Despite the challenge in getting the best, we have the best for you from our all-inclusive research to ensure you get the best out of the best. Here are the best large diffusers.


Best Large Diffusers in 2019

Large Diffusers Reivews | Covering Large Areas

9. VicTsing 300ml Cool Mist Humidifier Ultrasonic Aroma Essential 

VicTsing 300ml Cool Mist Humidifier Ultrasonic Aroma Essential Oil Diffuser for Office Home Bedroom Living Room Study Yoga Spa - Wood Grain

With the confidence more than 10,000 customers have had on this large diffuser, you will be sure to have the best of the fragrance you will be looking for. As a matter of fact, customers repeat to get it after having an experience with it. It is a versatile large diffuser which will fill the large space or room with fragrance through the addition of oil drops to the water.

Furthermore, this large diffuser contains a design of the waterless automatic shut-off function after 5 seconds when the water has run out of the diffuser. This will, therefore, provide you with safety together with the protection of the aroma diffuser also.

Features
  • Contains 4-time setting modes which include continuous, 6 hours, 3 hours and 1 hour
  • Features 7 LED lights which have both dim and bright modes
  • A large water tank capacity of 300ml


8. ASAKUKI 500ml Premium, Essential Oil Diffuser

ASAKUKI 500ml Premium, Essential Oil Diffuser, 5 In 1 Ultrasonic Aromatherapy Fragrant Oil Vaporizer Humidifier, Timer and Auto-Off Safety Switch, 7 LED Light Colors

Do you want to create a pleasant, fragrant and a healthy atmosphere in your home? Well, the Asakuku large diffuser will be your best option through which you just need to add 5 to 10 drops of the essential oil you love and filling the diffuser with water. This will not only provide the fragrant feeling in your home, but it will also improve the air quality among relieving you.

It features an auto-off safety switch which prevents the diffuser from overheating where water has run out. Furthermore, you will enjoy much efficiency with the use of this best large diffuser through which its large water tank of a capacity of 500ml is also easy to clean.

Features
  • Time settings which include continuous and 3 timers of 60, 120 and 180 minutes
  • Features LED colors of 7 distinct types with Light, Dark, and light only functions
  • The ultrasonic mist function is of 2 levels


7. URPOWER Essential Oil DiffuserURPOWER Essential Oil Diffuser, 400ml Wood Grain Aromatherapy Diffuser Ultrasonic Cool Mist Humidifier with Color LED Lights Changing and Waterless Auto Shut-off for Bedroom Office Home Baby Room Yoga

This is an amazing large diffuser with a classic wood grain finish. This makes it look unique and stylish yet providing you with the relaxation you need in the large space. It is not only suitable for the fragrant feeling of your large rooms but will also be used in complementing the décor of your home.

Its design incorporates the use of the adopted ultrasonic technology hence making this diffuser to work completely silent. Furthermore, it also has an auto-shutoff feature for safety after the water has run out of the diffuser.

Features
  • Features 7 soothing LED light through which you can cycle the colors or fix one color only. Additionally, every color has two options of brighter and dim
  • A mist control and 4 timer setting
  • Large water capacity of 400ml


6. MAJESTIC PURE Essential Oil Diffuser

MAJESTIC PURE Essential Oil Diffuser - Advanced Cool Mist Humidifier, Ultrasonic Aromatherapy Diffuser with Strongest Mist Output - Best Coverage, Longer Run Times, BPA Safe - 400ml

The Majestic Pure large diffuser features an ergonomic design through which it appears as a flower bud. Having a large water capacity of 400ml, you will be sure to have it working on up to 12 hours with no interruptions. Furthermore, it is safe to use through its auto-shutoff feature which ensures that when there is low or no water, it shuts itself to avoid overheating and for safety purpose.

The continuous and intermittent settings provided will give you the option of choosing how you would love the circulation of the hair. With this, it is, therefore, suitable for home and professional uses.

Features
  • 7 changing color LED light
  • Water capacity of 400ml
  • Auto-change light feature

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5. InnoGear 500ml Aromatherapy Essential Oil Diffuser Wood 

InnoGear 500ml Aromatherapy Essential Oil Diffuser Wood Grain Aroma Diffusers Cool Mist Humidmifier with Timer Adjustable Mist 7 Color Changing Night Lights Waterless Auto Shut-off

InnoGear Aromatherapy large diffuser will be the perfect solution for the large rooms and halls if you are looking forth to have a relaxing feeling. First, with the large capacity of 500ml, you will be sure that it can work for a time of up to 15 hours covering a large space of up to 269 sq. ft.

Moreover, uses the ultrasonic technology which runs quietly; hence it will not be disruptive while you are sleeping. Lastly, there is ease in plugging and unplugging through the ease to access power jack on the side rather than the bottom for ease in access.

Features
  • 7 color changing LED lights
  • 4 timer setting
  • An auto shut-off feature when water runs out


4. ​AJESTIC PURE Essential Oil Diffuser

MAJESTIC PURE Essential Oil Diffuser - Advanced Aroma Diffuser with Strong Mist Output - Best Ultrasonic, Wider Area, Cool Mist Humidifier, Longer Run Times, BPA Safe and Automatic Safety Features

If you have been looking for the perfect large diffuse to your large room and spaces, then the Majestic Pure large diffuser will be perfect to choose. It contains a stronger mist output which is essential for the improvement of the air quality together with eliminating the dust allergens. Furthermore, it covers a wide area of up to 1000 sq. ft. through its large capacity.

The whisper-quiet operation design used ensures that you get the mist output without any disruption. To complement the output released, it has both the intermittent and the continuous settings which you choose from that best suits you.

Features
  • Large area coverage of up to 1,000 Sq. ft
  • Contains an auto-change light feature for more relaxation
  • Can run on up to 16 hours


3. URPOWER Square Aromatherapy Essential Oil Diffuser Humidifier

URPOWER Square Aromatherapy Essential Oil Diffuser Humidifier, 700ml Large Capacity Modern Ultrasonic Aroma Diffusers Running 20+ Hours 7 Color Changing for Home Office Bedroom Living Room Study

Get the peace of mind you need through this amazing URPOWER Square large diffuser. First, with its compact appearance, it becomes one of the best décors which you will use in complementing other home décors. Furthermore, it has a versatile use through which you can use it at home, office, hotels, studios and many more.

Its design incorporates the use of the whisper-quiet ultrasonic technology which not only gives you a peace of mind but it will be friendly while sleeping. Lastly, the beautiful design makes it suitable for the large rooms and spaces in which you will be sure of the hassle-free working due to its shut-off feature.

Features
  • 7 color changing LED lights
  • Large water capacity of 700ml
  • An auto shut-off feature


2. URPOWER 1000ml Essential Oil Diffuser Humidifiers Remote Control 

URPOWER 1000ml Essential Oil Diffuser Humidifiers Remote Control Ultrasonic Aromatherapy Diffusers Room Decor Running 20 Hours with Adjustable Mist Mode,Water-less Auto Shut-Off & 7 Color LED Lights

Our top best second pick is the URPOWER large diffuser which will not only give you a perfect relaxation feeling, but it will also act as a décor to complement the stylish look of your home. It has a white plastic cap which shows when the LED lights are on. Furthermore, its large water capacity of 1000ml ensures that it can run for a long period of time yet moisturize air for a large area.

Moreover, the waterless auto shut-off feature ensures it is safe to use through which it will turn the diffuser off when there is low or no water. Lastly, it is a 3-in-1 large diffuser through which it is not only a large diffuser but also a humidifier and providing a night light function as well.

Features
  • Large water capacity of 1000ml
  • Adjustable mist mode
  • An automatic shut-off feature


1. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier - Premium Humidifying Unit with 1.5L Water Tank, Whisper-Quiet Operation, Automatic Shut-Off and Night Light Function - Lasts Up to 16 Hours

Having more than 11,000 customers who have purchased this large diffuser, you will be sure of not only loving it but also getting the quality of service you expected. First, it has an extra-large water capacity of 1500ml which compared to most large diffusers is far above them. In addition to this, it features the automatic shut-off which will turn this large diffuser off when water is low, or there is not water.

Not only that, but its ultrasonic cool mist technology will moisturize air for up to 16 hours. In addition to this, it also has a low and high speed setting such that you can adjust the mist direction together with speed for fitting your comfort level.

Features
  • An auto shut-off feature
  • Soothing low from LED lights for enhancing the relaxation
  • Large water capacity of 1500ml


In conclusion, having an ambient atmosphere in your home or at any place is very significant. Large diffusers will provide the ambient atmosphere in even large rooms and spaces through their larger water capacity which can also run for a longer time. Furthermore, they come with other complementing features such as the auto shut-off features together with the LED lights which complement your relaxation. Have it today to have the best aromatherapy benefits you have always desired.