Get Your Aromatherapy on With These Extra Large Oil Diffusers for the Whole House

The essential oil dispensers are more and more popular these days! Thanks to their affordable prices, the safety they represent and the well-being they provide, they found a place in our homes. While diffusing the essential oil’s vapors throughout the room, you enjoy the benefits of the oil and also an enchanting perfume. Unlike flavored candles and room deodorants, essential oil diffusers do not use any chemicals. This provides a natural, healthy environment throughout the room. Another great benefit of the essential oil dispensers is the flexibility they provide. You can easily switch from one oil to another according to your preferences and needs!

Extra Large Oil Diffusers for the Whole House

If you are interested in a larger capacity diffuser we got you covered. Check out below some of 2018’s best-rated, large oil diffusers for the whole house.

Everlasting Comfort Ultrasonic Humidifier and Essential Oil Diffuser (6L)

This generous, 6 liters capacity model brings the best bang for the buck for large ultrasonic humidifiers available these days on the market. It has a sleek design with an intuitive knob that controls the ultrasonic driver level vs the fan. Unlike most ultrasonic humidifiers, this one doesn’t require any expensive filters to function properly.


  • Extra large capacity -featuring a 6 L (1.6 gal) tank it releases a high mist output up to 270ml/hr. It provides great results for rooms up to 400 sq. ft and lasts 50 straight hours between refills!
  • Essential oil tray facilitates the use of your favorite essential oils similar to an oil diffuser.
  • Blue LED nightlight contributes to a relaxing ambient but can also be turned off if desired
    360-degree rotating nozzles and fully adjustable mist and steam output knob allow the user to enjoy a customized experience
  • The humidifier automatically turns off when it runs out of water preventing damage to the unit and keeping you safe!
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OPOLAR Ultrasonic Cool Mist Humidifier&Esential Oil diffuser 2L

The OPOLAR essential oil diffuser benefits from a special technology that uses ultrasonic vibrations to turn the distilled water and oil into an ultrafine scented mist. This way, the user enjoys a heightened sense of smell and the best from the oils’ therapeutic benefits.


  • Top-Filling & Easy to Clean
  • 7-Color Mood Lights: transition through all various colors in a subtle soft illumination, hold your favorite LED color light or turn the lights off completely.
  • 2L Water Tank & 3 Mist Setting: Low, Med, High.
  • Auto shutoff when water tank is empty.
  • The unit’s maximum output can be up to 200mL/Hr
  • Recommended for spaces between 250-400 ft² for best results.
  • Silent Operation ( 35dB) with Sleep Mode

Exqline 1500ml Humidifier and Aroma Essential Oil Diffuser

This extra large oil diffuser provides long-running functionality (10-20 hours, depending on the mode) and easy to handle customization features like mist output or lighting mode. Just add a few drops of your favorite essential oils to the reservoir and choose between 7 light options, separately switchable between bright and dim to enjoy a cozy atmosphere in no time.


  • Super large Capacity & longer running time: 1500ml capacity water tank ensures a running time of up to 10-20 hours.
  • Designed to humidify the air in rooms up to 325 sq ft and aromatherapy scent coverage area is 450 sq ft.
  • Easy to use and maintain
  • 7 light options, switchable between bright and dim
  • Adjustable vapor output: knob with 270° rotation to set humidity level.
  • Whisper quiet operation: less than 35 dB of noise
  • Ultrasonic Mist allows Exqline large capacity essential oil diffuser to maintain essential oil integrity and holistic properties
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iTvanila Ultrasonic Cool Mist Humidifier,5L with Essential Oil Diffuser

This promising new release offers a generous 5 L tank that ensures the soothing humidity for space up to 330-430 ft²/30-40 m². With an autonomy of at least 12 hours, you can add your favorite essential oils and customize your experience with the help of 3 mist modes.


  • Ultrasonic technology
  • 3 mist modes
  • 360°mist nozzle
  • Sleep mode(quiet):< 35 db
  • 5L vast capacity
  • Timer(up to 12h)
  • Auto shut-off
  • Operating area: 330-430 ft²/30-40 m²

SimpleTaste 4L(1.06 Gallon) Ultrasonic Cool Mist Humidifier Aroma Essential Oil Diffuser with LCD Display

Personally, I prefer an LCD display since I get the feeling of easier and more accurate control over the devices.  SimpleTaste offers this generous capacity, an ultrasonic humidifier that uses a special sponge to release essential oils and fill your home or office with a pleasant, soothing aroma.


  • 4L (1.06Gal) water tank ensures 13 hours functioning time on the maximum flow setting or 20 hours at the minimum flow rate
  • 360° rotatable mist nozzle to easily adjust mist direction
  • 7-colour LED night-light with static and cycling color settings
  • Automatic shut-off when the water level is very low.
  • LED display with indoor temperature show, Built-in timer;
  • Whisper-quiet (<35dB) operation
  • Integrated aroma diffuser slot with a sponge

1byone 6L /1.59gal Ultrasonic Humidifier With Essential Oil Aroma Diffuser

Running up to 20 hours on the max setting, this model is a true powerplant in the ultrasonic humidifier area. The mist nozzle rotates 360 degrees facilitating maneuverability while 7 LED colors and the essential oil feature provide the ultimate customization for your ambient.


  • Large Capacity 6-liter water tank with Automatic Shut-off for a carefree experience
  • Super Quiet Ultrasonic Technology- less than 30 dB of whisper noise
  • Adjustable Mist Flow – from 75ml/h to 300ml/h
  • Aroma Diffuser with a diffusor sponge
  • 7-Color Night Light
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Everlasting Comfort Ultrasonic Humidifier (6L) with Essential Oil Tray

This bestseller humidifier model produces high mist output up to 270ml/hr and lasts 50 straight hours between refills! It needs no filter, cutting back further expense and works with plain, tap water. Keep in mind that by using tap water with a high mineral content (“hard water”) with any humidifier can cause a fine white dust. Avoid this by using distilled or demineralized water.


  • HIGH OUTPUT / LARGE CAPACITY: 6L (1.6gal) tank with high mist output up to 270ml/hr
  • It provides great results for rooms up to 400 sq. ft and lasts 50 straight hours between refills
  • ESSENTIAL OIL TRAY. A fan circulates the oils into the mist
  • Blue LED nightlight
  • 360-degree rotating nozzles and fully adjustable mist and steam output knob
  • AUTO SHUT OFF when it runs out of water preventing
  • IMPORTANT NOTE: When re-filling the water tank, remove water tank from the base and cover the bottom of the water tank with a towel to avoid condensation from dripping on the floor.

OPOLAR 5.8L/1.53gal Cool Mist Ultrasonic Humidifier&Essential Oils Diffuser

A sleek design and some great features like 3-mode humidity control, built-in timer, intuitive LED display, sleep mode, auto-stop for water shortage, an aroma diffuser and 360°rotatable mist nozzles make this model a serious contender.


  • Large capacity & coverage: 5.8 Liters water tank (1.53 gallons) with maximum 350mL/H mist volume
  • Multi-function: 3-mode humidity provider, built-in timer, intuitive LED display, sleep mode, auto-stop for water shortage, an aroma diffuser and 360°rotatable mist nozzles.
  • Whisper-quiet: less than 35dB
  • Unique design: modern, sleek, and aesthetically pleasing.

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