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Last updated: 03 Sep 2020

The Best Car Essential Oil Diffusers (Review) in 2020

InnoGear USB Car Essential Oil Diffuser

InnoGear USB Car Essential Oil Diffuser

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ZAQ Travel Car Diffuser

ZAQ Travel Car Diffuser

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RoyAroma Car Essential Oil Diffuser

RoyAroma Car Essential Oil Diffuser

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Show contents
Contents
  • The Best Car Essential Oil Diffuser
  • 1 InnoGear USB Car Essential Oil Diffuser
  • 2 YJY Essential Oils Portable Diffuser
  • 3 Vyaime Aromatherapy Car Diffuser
  • 4 Gulaki Car Diffuser Essential Oils
  • 5 RoyAroma Car Essential Oil Diffuser
  • 6 Vyaime USB Car Essential Oil Diffuser
  • 7 Lavore Aromatherapy Car Diffuser
  • 8 Weljoy Car Portable Diffuser for Essential Oils
  • 9 RoyAroma Car Essential Oil Diffuser
  • 10 EconoLED Essential Oil Car Diffuser
  • 11 Ominilight Aromatherapy Oil Diffuser for Car
  • 12 Chengzeyi Essential Oil Aromatherapy Diffuser
  • 13 Syntus Car Essential Oil Diffuser
  • 14 ZAQ Travel Car Diffuser
By Car Bibles Staff
Published Aug. 6, 2019

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Cars are like magnets for bad smells. If you’ve ever been in a car after a wet dog sat on the backseat you’ll be able to smell that musty scent for a long time afterwards. It’s also easy to guess what the driver last ate in the car, as those burger smells just ain’t going away, even if he or she left the windows open. A car is essentially a small metal box with smell-absorbing materials such as plastic and fabric, so it’s always a bit baffling why people choose to mask nasty old smells with chemical air fresheners.

Enclosed spaces provide the perfect opportunity for pleasant smelling products, and there is no better way to make your car smell better than to use natural essential oils. Essential oils are best used with an aromatherapy car diffuser. Not only are these products specifically designed for this purpose, but they look great in your car too – which means no more stinky magic trees hanging from your mirror! There are hundreds of car essential oil diffusers on the market, and not all products are created equal. So, we’ve taken on the task to find the very best products for your car and present them to you with the best features highlighted.

Here are our best car essential oil diffusers:

The Best Car Essential Oil Diffuser

1
InnoGear USB Car Essential Oil Diffuser

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InnoGear USB Car Essential Oil Diffuser
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This car diffuser has been designed with the perfect shape in mind. The handy vehicle cup holder design means that it’s simple to keep in place while you’re on the move. The car essential oil diffuser works with a USB connection so you simply plug it into your car to create beautiful scents in your vehicle and maintain a super fresh environment, free of moisture and odors. Unlike essential oil diffusers that are designed for the home, this particular model has the mist modes and switch buttons on the top so it’s easy to operate while driving. There are two modes on the diffuser: continuous and intermittent. This is a BPA-free product, which means that it does not contain bisphenol A – a harmful chemical that is often used in plastics. It also has a nice safety feature: the intelligent automatic off switch, which means that the machine won’t keep working “dry” when the liquid runs out. There are seven color-changing LED lights that can relieve fatigue driving or can be switched off if they are a distraction. 

Key Features:

Handy Vehicle Cup Holder Design

USB Connection

Intelligent Off Feature

BPA-Free

7 x Color Changing LED Lights

Specification:
  • BrandInnoGear
  • Model UD50
  • Weight 4 ounces
Pros

Handy Compact Design

12 Month Warranty

Easy To Use

Several Mist Modes

Cons

Car Adapter Cable Not Included

2
YJY Essential Oils Portable Diffuser

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Car Diffuser Essential Oil
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With this product, you’re going to add a delicious fragrance to the inside of your car and clean the air too. This portable humidifier is perfect for enclosed spaces and utilizes ultrasonic technology so your car oil diffuser will never get clogged. This product promises to improve the air quality of your car, and it does this by breaking water and oil into fine micro-particles and gently releasing them into the space where it’s plugged in. There is an automatic shut-off feature to stop the diffuser once it’s dry, and it’s easy to use in your car. We also like that this product has seven mood lights that can be used while driving – they’re super subtle too. 

Key Features:

Car Humidifier & Essential Oil Diffuser

Different Mist Settings

Mood Lighting

Specification:
  • Brand YJY
  • ModelCar humidifier GT_Black
  • Weight5.6 ounces
Pros

Compact Design

Very Subtle Lighting Options

Fits Into Vehicle Cup Holder

Cons

Car Adapter Not Included

3
Vyaime Aromatherapy Car Diffuser

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Vyaime Aromatherapy Car Diffuser
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Like any good-quality aromatherapy car diffuser, this product has multiple features that are specially designed to improve the air quality of your car and release natural scents into the space. Not only does this product freshen and clean the air of your car but it also adds more humidity into the environment, which can help increase energy levels while you drive. These clever little diffusers work by producing very small water droplets and oxygen ions into the air, so all you need to do is add your chosen essential oil and you will get a subtle scent too. This essential oil diffuser has dual USB charging ports and is compact in style, perfect for fitting into your car. This is a quiet diffuser too, so you won’t get any distracting sounds that affect your driving.

Key Features:

Dual USB Charging Ports 

Ultra Compact Design

Humidifier Mode & Diffuser Mode

Powerful Mist

Specification:
  • Brand Vyaime
  • ModelCar plastic diffuser 2nd_Black
  • Weight6.4 ounces
Pros

Can Plug Directly Into Cigarette Holder

Takes Up Hardly Any Space

Cons

No Mood Lighting

Small  – Two Hour Run Time Before It Needs Refilling

4
Gulaki Car Diffuser Essential Oils

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Gulaki Car Diffuser Essential Oils
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Here’s another fantastic, multifunctional product that has been specially designed for car use. This 3-in-1 diffuser enables you to fill your environment with your favorite essential oils, and it certainly won’t get in the way as it has a special ‘cup’ design that fits into your vehicle cup holder. What many people don’t realize is that cars can become quiet dry and dry air has a terrible effect on skin, lungs and eyes. This car oil diffuser works as a humidifier as well as a diffuser and features an intelligent ‘off’ switch so it will automatically turn itself off when the water runs below the low-water line. This product comes with two USB charging ports and one car charger socket so it performs its third job as a charging port in your vehicle.

Key Features:

3-in-1 Car Humidifier, Diffuser & Charging Port 

Compact Cup Design

BPA-Free

Specification:
  • BrandGulaki
  • ModelKF4301099
  • Weight 5.3 ounces
Pros

Multifunctional

Available in Two Colours

Purifies Air

Cons

No Mood Lighting

5
RoyAroma Car Essential Oil Diffuser

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RoyAroma Car Essential Oil Diffuser
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If you’re looking for the best essential oil diffusers but find the plug-in varieties too overwhelming, then the Roy Aroma Vent Clip Lockets provide an excellent and very cute alternative! In this package you get two lockets with two different designs: a sunflower and tree of life. The pack comes with 12 different colored pads that act like little sponges to absorb your favorite essential oils. To relieve stress and keep alert while driving, choose a relevant oil for the pads, add a few drops, place them into the lockets and then simply clip onto your air-conditioning vents. What we like about these little lockets is that they’re great for the home and office too.

Key Features:

Unique Essential Oil Lockets

12 x Felt Pads Included

Compact Design

Stainless Steel 

Specification:
  • BrandRoyAroma
  • Weight2.4 ounces
Pros

Versatile

Great Gift Idea

Two Designs Included

Easy To Use

Cons

Pads Need Replacing 

Doesn’t Purify Air Like Diffuser

6
Vyaime USB Car Essential Oil Diffuser

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Vyaime USB Car Essential Oil Diffuser
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This has got to be one of the most stylish products on our list. This Vyaime Car Essential Oil Diffuser boasts a super sleek design that will enhance the look, feel and smell of any vehicle! Not only stylish but practical too, this diffuser has been designed to comfortably sit in your vehicle cup holder. This portable car diffuser is USB powered, making it versatile enough to use in your car, home and office. There are several modes: continuous, intermittent and with or without light. The lights change color, but they’re super subtle so they won’t distract you when you have your eyes on the road.

Key Features:

Compact Car Diffuser

Color Changing LEDs

USB Powered

Several Mist Settings

Specification:
  • Brand Vyaime
  • ModelKQ Car Humidifier GreyB
  • Weight8.8 ounces
Pros

Stylish Design

Multifunctional

BPA-Free Plastic

Long Run Time 

Cons

No USB Adapter Included

7
Lavore Aromatherapy Car Diffuser

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Lavore Aromatherapy Car Diffuser
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These cute little vent clips make a good alternative to traditional aromatherapy car diffusers. Air travels through the small holes located at the back of the diffuser and pushes through your chosen essential oil, making your car smell fresh and natural. All you need to do is clip them onto your air conditioning air vents and let them do their work. What we love is that you can actually control the rate in which the scent is dispensed by simply turning a dial on the diffuser’s cap – a very cool feature indeed. 

Key Features:

Fully Customizable Car Air Vent Freshener

Includes x 4 Unscented Sponge Sticks

100% Money Back Guarantee 

Specification:
  • BrandLavore
  • Weight5.6 ounces
Pros

Small & Versatile

Control Rate Of Scent Dispensing

Stylish

Cons

Sponges Need Replacing

Doesn’t Purify Air

8
Weljoy Car Portable Diffuser for Essential Oils

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Weljoy Car Portable Diffuser for Essential Oils
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Now here’s a clever little gadget. This tiny portable diffuser looks and feels very different from the rest of the products on our list. We simply had to include this one because not only is it absolutely adorable, but it’s also functional as a diffuser too. The way in which this car oil diffuser works is super smart because it doesn’t require water. All you need to do is remove the cover and add one or two drops of your desired essential oil onto the pad, replace the cover and then switch on. This diffuser runs with USB or battery and the interior fan is super quiet. 

Key Features:

Stylish Wood Effect Diffuser

No Water Required

Quiet Run Time

USB Cable Included

Specification:
  • BrandWeljoy
  • Weight1.76 ounces
Pros

Super Versatile

Can Be Used Anywhere

Unusual Design

Waterless 

Cons

Not Real Wood – Plastic

9
RoyAroma Car Essential Oil Diffuser

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RoyAroma Car Essential Oil Diffuser
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This is one of those products that you’ll either love or hate – but we love it! The cute acorn design will appeal to those of you who are looking for a unique essential oil car diffuser that won’t take up too much space in your car yet will hold your chosen oils. The unusual acorn design is made from natural wood materials and can be hung on your mirror for a gentle hint of scent. This can be used to simply decorate your car or as a diffuser. It’s easy to use too: just fill the interior bottle with your favorite oils or scent and then replace the stopper.

Key Features:

Cute Acorn Design

Natural Wood Materials

Versatile

Specification:
  • BrandRoyAroma
  • ModelABCD
  • Weight1.6 ounces
Pros

Small 

Unique Design 

Nice Gift Idea

Cons

Subtle Scent

10
EconoLED Essential Oil Car Diffuser

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EconoLED Essential Oil Car Diffuser
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This car humidifier and essential oil diffuser is super durable and easy to use. What makes this particular car oil diffuser unique is that you can swivel it in any direction to aim the scent! The extra moisture in the air will give you immediate benefits such as brighter eyes and less fatigue. You can adapt this product to your needs and add in any oil that you favor. This will instantly transform your drive, giving you more energy or making you feel calmer after a long day at work. Choose the right essential oil to suit your mood.

Key Features:

Humidifier & Essential Oil Diffuser

Purifies Air

Two Hour Automatic Power Off Feature

Specification:
  • BrandeconoLED
  • Model8541833104
  • Weight 3.2 ounces
Pros

Special Rotating Design

Robust

Cleans Air

Cons

Unattractive Design

11
Ominilight Aromatherapy Oil Diffuser for Car

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Ominilight Aromatherapy Oil Diffuser for Car
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Not everyone wants an essential oil car diffuser that requires water. Although they’re safe, many people find adding the water a hassle. This essential oil diffuser is different because it doesn’t in fact, require any water to operate. This car diffuser also requires no heat, it just simply takes the essential oil in its purest form and releases the scent gently. This retains the essential oil’s integrity and creates a stronger scent that lasts longer. The diffuser works on a timer and you can fully adjust the settings to suit the frequency of the oil release. This is a small product too so it’s really versatile and can be used for the home, in cars and whilst travelling. 

Key Features:

Waterless Car Essential Oil Diffuser

Super Portable

Sleek Design

BPA-Free

Specification:
  • BrandOminilight
  • Weight13.6 ounces
Pros

Requires No Water

Nice Design

Family-Friendly

Cons

Can Only Release Small Amounts Of Scent

12
Chengzeyi Essential Oil Aromatherapy Diffuser

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Chengzeyi Essential Oil Aromatherapy Diffuser
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This essential oil diffuser can take 100ml of liquid, making this one of the largest capacities on our list. There are seven color options and you can change the settings so it can stay on a specific color or change colors. This is a multifunctional product that can be used as an essential oil diffuser or a humidifier and because it works with USB ports it’s versatile enough to be used anywhere. 

Key Features:

USB Powered Essential Oil Diffuser

7 x Color Options

Auto Turn-Off

Specification:
  • BrandChengzeyi
  • Weight6.4 ounces
Pros

Versatile – Can Be Used Anywhere 

Minimal Design

Large Capacity

Cons

Quite Large For Some Cars

13
Syntus Car Essential Oil Diffuser

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Syntus Car Essential Oil Diffuser
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If you take a good look at this design you’ll instantly see why we had to add it to our list. This is one of the most stylish car essential oil diffusers and we just love the wood effect combined with the color-changing body. Not only does this product look great but it also works hard to remove unwanted odors and promises to leave behind a pleasant smell that lingers for a long time. Much like the others, this diffuser works by using silent ultrasound vibrations to create a mist in the space where it occupies. This product works as an essential oil diffuser and humidifier, adding moisture to the air for health benefits. The mist is cool so this is a safe item to use around children and animals. The color sequences can be adjusted to stay on one chosen color or cycle through the color spectrum.

Key Features:

Color Changing

Wood Effect Design

Fits Into Vehicle Cup Holder

Humidifier & Essential Oil Diffuser

Specification:
  • BrandSyntus
  • ModelD50L
  • Weight4.2 ounces
Pros

Stylish Wood Effect Design

Space Saving Shape

Several Mist Settings

Cons

Quite Large For Some Cars

USB Adapter Not Included

14
ZAQ Travel Car Diffuser

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ZAQ Travel Car Diffuser
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We absolutely love this travel size essential oil diffuser as it is perfect for travel. It has been made to fit your vehicle’s cup holder and features a unique design that prevents the diffuser from tipping while your vehicle is in motion. The product can hold 60ml of liquid too so you’ll get lots of run time – approximately 2-4 hours on constant stream or 5 hours on intermittent mode. This is a sturdy little product, so if you’re looking for a car essential oil diffuser that’s going to last, then this is it.

Key Features:

Travel Size Essential Oil Diffuser

Special Non-Spilling Design

Includes Car Charger & Home Adapter

Specification:
  • BrandZAQ
  • ModelSG_B01LXYCVK8_US
  • Weight14.4 ounces
Pros

Silent LiteMist System 

Robust Design

Versatile

Cons

Expensive

No Mood Colors

Best Car Essential Oil Diffuser Buying Guide

There are lots of different types of diffuser and it can be difficult to know which are the best car essential oil diffusers to buy. Below, we have written a guide giving you tips on what to look for when buying a new car diffuser. We’ll also tell you how to safely use essential oils and answer your most commonly asked questions.

   Car Diffuser Essential Oil White

What to Look for In a Car Essential Oil Diffuser

There are several things that make a good car essential oil diffuser. This is what we believe are the most important features:

  • Portable

No doubt the most important feature. If you are planning to use the essential oil diffuser inside your car then you are going to have to find a product that is portable and designed to be used in cars. No use buying a traditional oil diffuser that has a standard plug connection. Look for portable diffusers that use a USB connection. These are easy to use in cars and are versatile to be used in the home and office too.

  • Safety

Opt for a BPA-free diffuser. This means that the materials used in the design are less toxic and safe for family use. If you are planning to use this in a car then the last thing you want to be doing is pumping chemicals into the space. Look for safety features such as an automatic shut-off too which turns the machine off when the liquid reaches below the low-water level.

  • Capacity

The larger capacity the more time you will get before you have to refill the diffuser. But look out for the measurements on the larger capacity products to make sure they will fit comfortably in your vehicle cup holder.

  • Design

Not only should your oil diffuser perform well, but it should look good too. There are lots of nice sleek designs out there to choose from. From a practical perspective it’s good to opt for a design that will fit into your vehicle cup holder.

  • Lights

Some car oil diffusers feature lights and many provide a button which can make the colors change. This can be a really nice feature in your car if the effect is subtle. Otherwise it can be a distraction. So, as a general rule, the brighter the lights are, the more suitable they are for your home and not your car.

  • Ease of Use

There’s no point in buying an oil diffuser if it impossible to use, or worse still...fiddly. Look for diffusers with simple buttons on the top so that they are easy to use whilst driving.

  • Durability

Don’t buy the cheapest on the market, whatever you do! Always go for the mid/top range products that offer value for money and a robust design.

Why You Should Use a Car Diffuser

There are many reasons why you should use a car diffuser. Firstly, standard air fresheners are full of chemicals and often make bad smells in your car smell worse. Using a car essential oil diffuser means that you can add your favorite scents and fill your car with natural smells. Essential oils have medicinal benefits too. To wake you up in the morning you could add orange oil drops mixed with grapefruit and if you need to wind down after work, why not try lavender? Be careful though as essential oils are strong and lavender can make you sleepy!

Using an oil diffuser also improves the air quality. By adding moisture into the air you can prevent dry skin and eyes and prevent a cough.

How To Use Essential Oils 

Aromatherapy has been around for a very long time and it is no longer seen as a “hippy” thing to do. More and more people are coming around to the idea of essential oils and using products which are natural and organic. We’re all a bit over chemical products. The power of essential oils should not be underestimated. If you’ve ever smelled orange oil or peppermint oil when you’ve felt tired then you’ll know how it can instantly make you feel awake. On the contrary, lavender can really relax people and help with stress and anxiety.

There are many different ways to use essential oils. Traditionally they have been used for massaging and are always mixed with a carrier oil such as almond oil. However, when you use essential oils in oil diffusers you must only need to add a few drops to water - unless you have a waterless diffuser.

Do your research first and find out what are the best types of oils for your needs. Are you looking for something to give you more energy? Perhaps you need something to help you feel calm? Find out what the oils do before you add them to your diffuser and only ever use a few drops at once.

Best Car Essential Oil Diffuser FAQ:

Q: How long does an essential oil car diffuser last? 

A: The answer to this question depends on a number of different factors. Firstly, how much does the diffuser cost? If it is a bargain basement product then it’s not going to last very long. Buy the best quality you can afford and look for a product with a warranty. If you take care of your diffuser and make sure you don’t clog it with cheap oils, you should have it for a good while.

Q: How can I make my car diffuser last longer? 

A: There are a few things that you will need to do to make sure you give your diffuser the longest life. Firstly, only use essential oils and don’t even think about using cheap fake oils or even worse...perfume. Never fill water over the water mark and clean them around once every couple of months. To do this, fill your diffuser halfway with clean water, add ten drops of white vinegar, allow the product to run for about five minutes and then drain, use a cotton swab dipped in vinegar to clean any oily bits and then rinse thoroughly.

Q: How long do essential oils last in aromatherapy car diffuser? 

A: This is entirely dependant on the product - usually a few hours until the water has run out but this depends on your diffuser’s capacity.

Q: Do I have to use distilled water in car essential oil diffusers? 

A: Nope. You don’t have to use distilled water. Room temperature tap water is just fine. However, distilled water will prolong the life of your diffuser - so, your choice!

Car Essential Oil Diffuser

Our Top Pick 

Our favorite car oil diffuser on the list was the InnoGear USB Car Essential Oil Air Freshener Ultrasonic Aromatherapy Diffuser. We liked that it was designed with a perfect shape that can fit into the vehicle cup holder perfectly. This means that it’s super safe to use whilst driving your car and you shouldn’t be able to knock it over, unless you’re particularly clumsy! This works with a USB connection so it’s versatile and can be used anywhere if you have a USB adapter. We liked that this model has easy-to-use buttons on the top so it was easy to use whilst driving. It has an auto-off feature to prevent it from working ‘dry’ and seven color changing LEDs which can help keep you alert whilst driving.

Sources:

  1. How to Store Essential Oils - How Stuff Works
  2. How to Clean Your Essential Oil Diffuser - Wiki How
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