The Best Car Essential Oil Diffusers (Review) in 2021

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. 

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. 

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.

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.

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.

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.

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. 

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. 

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.

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.

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. 

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. 

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.

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.