What is the best essential oil diffuser for large spaces? Is there any difference when considering it?
After we spent more than 150 hours researching essential oil diffusing, comparing 30 models side-by-side, and asking a renowned expert of indoor air improvement, here are the six top picks.
Here are the best essential oil diffusers for large space you can buy in 2021:
- Quiet: BZseed Aromatherapy Essential Oil Diffuser
- Easy To Set Up: HLS Essential Oil Large Room Diffuser
- Decorative &Amp; Functional: Jack & Rose Diffusers
- Best For Consistent Performance: BlueHills Premium 2000 ML XL Large Essential Oil Diffuser
- Best For Kid’s Room: Homasy Essential Oil Diffuser
- Best For Living Room: ARVIDSSON Ultrasonic Cool Mist Essential Oil Diffuser
|6 Best Essential Oil Diffusers For Large Space|
|BZseed Aromatherapy Essential Oil Diffuser|
Easy To Set Up
|HLS Essential Oil Large Room Diffuser|
Decorative &Amp; Functional
|Jack & Rose Diffusers|
Best For Consistent Performance
|BlueHills Premium 2000 ML XL Large Essential Oil Diffuser|
Best For Kid’s Room
|Homasy Essential Oil Diffuser|
Best For Living Room
|ARVIDSSON Ultrasonic Cool Mist Essential Oil Diffuser|
Quiet: BZseed Aromatherapy Essential Oil Diffuser
- Ultra-quiet - advanced ultrasonic diffusing technology
- Practical and convenient – two mist settings, 8 lighting color options, dimmer function, and timer
- Safe to use – waterless auto-shutoff features
- The water line-markings are hard to read
- Wish there were no beep sounds
This essential oil diffuser has all the features required for bedroom, workspace, or home studying room use, especially for operation noise levels.
It highlights advanced ultrasonic diffusing technology that efficiently dampens operation sounds.
For your information, its noise ranges are 28-31 decibels – equivalent to a whisper that perfectly works as white noise to boost deeper slumber. Insomnia people also find it easier to fall asleep in this calming sound.
Just notice that when you change the mist setting, there are beep sounds.
Some other practical add-ons of this essential oil diffuser are the 8 adjustable lighting colors with dimmer function, 3-setting timer, and waterless auto-shutoff.
|BZseed Aromatherapy Essential Oil Diffuser Specifications|
7.3 x 6.5 x 7.3 inches
55ml/h VS 30ml/h
Weak mist: 10-12 hours
Strong mist: 9-10 hours
Humidification: 150-200 square feet
Aromatherapy: 425 - 500 square feet.
advanced ultrasonic diffusing technology
two mist settings, 8 lighting color options, dimmer function, and timer
waterless auto-shutoff features
By adopting advanced ultrasonic diffusing technology, the BZseed works only at 28-31 decibels, making it become the quietest option this year.
Easy To Set Up: HLS Essential Oil Large Room Diffuser
- Convenient & Easy to set up – add a measuring cup and a set of 10 different essential oils in the package
- Safe – made of BPA-free plastic
- The included essential oil bottles aren’t the best quality
If you want an essential oil diffuser that is affordable and easy to set up, the HLS is a shining contender.
It comes with everything needed in the package, including a measuring cup and a set of 10 different essential oils (aside from the aroma diffuser and its charger adaptor, of course). Inside the water tank, there is MAX line marking to let you know how much water should be added.
The control panel has only two functional buttons and the manuals are straightforward.
One thing that we do appreciate is, despite the low price, it doesn’t compromise the user’s health safety; the materials used on this atomizer are 100% BPA-free. A big bonus!
|HLS Essential Oil Large Room Diffuser Specifications|
17.76 x 7.72 x 6.73 inches
up to 10 hours
270-320 square feet
add a measuring cup and a set of 10 different essential oils in the package
made of BPA-free plastic
The HLS Essential Oil Large Room Diffuser comes with everything needed for use right out of the box, making it a great pick for those who want something simple and easy to set up.
Decorative &Amp; Functional: Jack & Rose Diffusers
- Look classy and modern – featuring a marble grain top, dark green vertically-striped mid-body, and shiny rose-gold metal rim
- Compact and versatile – measured by 7.6 x 7.48 x 3.54 inches
- No fill line
The design of this essential oil diffuser really wowed us!
It looks so beautiful, classy, and modern for the price. The design includes a marble grain top and dark green vertically-striped mid-body, combining with glossy rose-gold metal rim, legs, and functional buttons. Particularly, the legs can be detached if you want.
The compact size allows this atomizer to fit any space and easily becomes a nice decorative ornament.
As for functionality, it packs a punch!
Per full water tank, it can run continuously within 20 hours with three timing options: 1/3/6H. There are 7 color choices to choose from.
|Jack & Rose Diffusers Specifications|
7.6 x 7.48 x 3.54 inches
up to 20 hours
feature a marble grain top, dark green vertically-striped mid-body, and shiny rose-gold metal rim
measured by 7.6 x 7.48 x 3.54 inches
The Jack & Rose Diffuser offers perfect conjunction of decoration value and functionality that can be displayed anywhere or used as a gift.
Best For Consistent Performance: BlueHills Premium 2000 ML XL Large Essential Oil Diffuser
- Offer total runtime of 40 hours – feature a 2000ml water tank
- Minimalist & modern – the stylized cylinder-shaped design with one control button
- Quite heavy
The BlueHills Premium Essential Oil Diffuser works like a beast.
It highlights a 2000ml water tank - which is 3x to 4x larger than other models in our article, therefore, its total runtime easily reaches 40 hours for more consistent performance.
Despite the ultra-large tank, it doesn’t look rough or cumbersome thanks to the stylized cylinder-shape design. The construction is also minimalist; including one functional button for adjusting the mist settings and light color options.
There’s no timer but you can rest assured to have it run overnight because the device is built with waterless auto-shutoff features.
|BlueHills Premium 2000 ML XL Large Essential Oil Diffuser Specifications|
13 x 7.4 x 7.4 inches
feature a 2000ml water tank
the stylized cylinder-shaped design with one control button
Talking about the most consistent performer, we find the BlueHills Premium 2000 ML XL Large Essential Oil Diffuser has no rival.
Best For Kid’s Room: Homasy Essential Oil Diffuser
- Kid-safe – made of BPA-free plastic & waterless auto-shutoff feature
- No babysitting during use – three timing options & Sleep Mode
- Run quietly & Not disturb kid’s sleep – feature ultrasonic technology
- No complaint
There are three good reasons making the Homasy Essential Oil Diffuser a great pick for kid rooms.
First off, it is extremely safe to use; the material is BPA-free, the device is built with waterless auto-shutoff, and the weight is light that kids can easily hold and move around with fewer risks of slipping off.
Secondly, it works quietly thanks to the added Sleep Mode and the ultrasonic technology. You won’t worry that the noise operation of this aroma diffuser could wake your angel up.
Thirdly, it has three timing options so that parents don’t have to babysit it. Another bonus is it has no colorful lighting, which will not trigger a kid's curiosity.
|Homasy Essential Oil Diffuser Specifications|
8.9 x 7.4 x 5.4 inches
12-20h in a low mist
8-11h in high mist
480 square feet
made of BPA-free plastic & waterless auto-shutoff feature
three timing options & Sleep Mode
feature ultrasonic technology
In need of a safe, high-quality essential oil diffuser for your kid’s room? Try the Homasy!
Best For Living Room: ARVIDSSON Ultrasonic Cool Mist Essential Oil Diffuser
- Speak out your characteristics and taste – the metal shell with finely engraved details
- Reliable – ETL and FCC certified
- Easy to use – the three-button control panel
- The mist isn’t really fine
- The outer cover is not heavy-duty
With finely engraved details plus breathtaking colorway, we believe this one-of-a-kind device will be a good conversation starter for you and your guests. Yeah, there is no perfect place for it other than the living room!
Aside from appearance, this atomizer has a distinguishing control board that includes up to 3 three functional buttons: Power, Timer, and Light, which is easier to use.
If you don't have the two-button or the single-button control panel as other aroma diffusers have because it requires many times pressing to adjust a certain function, this is a better choice to try.
Speaking of safety, it is a rare aroma diffuser that passed all the durable and safety tests by ETL and FCC so you can feel peace of mind during use.
|ARVIDSSON Ultrasonic Cool Mist Essential Oil Diffuser Specifications|
8.5 x 8.35 x 6.69 inches
the metal shell with finely engraved details
ETL and FCC certified
the three-button control panel
The ARVIDSSON Ultrasonic Cool Mist Essential Oil Diffuser is super-pretty, making it a nice decorative ornament in any vintage living room.
How To Choose The Best Essential Oil Diffuser For Large Space?
Water Tank Capacity
To ensure the essential oil diffuser can diffuse oil and last long enough for a large space, you should choose a larger water tank. But how large should it be?
According to our experts and experience, a 400-700ml water tank capacity is enough for an enclosure room of 250-450 square feet, depending on the mist setting and other factors. A 700-950ml water tank capacity is perfect for 450-500-square-foot space.
If the room is open, you should increase the water tank capacity to 1000+ml.
Waterless Auto-Shutoff Features
No matter the space area that the diffuser works on, it should be safe and reliable.
Here is a must-have safety feature you should consider. Auto shutoff – the way it works is when the water tank runs out, this feature is triggered to automatically turn the diffuser off, which avoids overheating.
To reduce babysitting, it is worthy to choose an essential oil diffuser built with a timer. The timing options depend on your needs.
For example, for bedroom use, the timer should have an 8-hour setting.
Which Brands Make The Best Essential Oil Diffuser For Large Space?
BZseed provides many essential oil diffuser lines for large spaces. But what makes them stand out from other brands is quietness thanks to the advanced ultrasonic diffusing technology. Besides, their products meet all safety standards to work reliably.
Jack & Rose
Essential oil diffusers by Jack & Rose are not only well-made and powerful but also look beautiful. They’re ideal for people who are concerned about home interior decorating.
We love Homasy’s essential oil diffuser lines for many good reasons. In addition to the brand reputation, the products are customizable, function well, and the customer service is great.
What size oil diffuser do I need for a large room?
The best oil diffuser size for a large room is 500+ml
Do diffusers cool down a room?
Yes, they do. In addition to diffusing essential oil into your room, diffusers release a lot of tiny water droplets, which helps increase the air humidity and cool down the room (as long as the space is airy).
Do you need a bigger diffuser for a bigger room?
Yes, you do. A basic rule of thumb is the bigger the room, the bigger the diffuser’s tank capacity should be.
Is a diffuser bad for your lungs?
It probably is. A diffuser can cause some bad issues on your lungs if you use it in a too-tight space for a too-long period of time. Or, you use poor-quality essential oils.
Can I keep my diffuser on all night?
No, you can’t. According to the well-known researchers we interviewed, keeping a diffuser on all night can increase your heart rate and blood pressure, make your skin and throat irritated, and cause headaches.
Many elements influence your decision on buying the best essential oil diffuser for large space, and we’ve just tested six of the top ones out there.
You should read through our reviews and buying guides to get an idea of what to look for and how to consider each factor. Our team hopes that our hard work helped you easily narrow down your choices.