Ultimate Guide to Choosing the Best Essential Oil Diffuser

The Ultimate Guide to Choosing the Best Essential Oil Diffuser

Diffusing essential oils into the air is one of the quickest and most affordable ways to add an inviting scent to your home. But there are a lot of choices on the market—and each type has its pros and cons.

To help you make the right decision, we asked two industry experts to weigh in with their recommendations. Read on to learn their top tips for picking the best diffuser.

Coverage Area

Many buyers believe that the higher capacity of a diffuser means it will cover more space. However, this is only sometimes the case. The coverage area depends on the amount of essential oil you use, so some trial and error may be necessary to find your perfect formula.

For small rooms, a compact ultrasonic diffuser is usually your best bet. This type of diffuser uses a water-oil mixture to disperse scents, and it often comes with features like timers and mist settings.

If you have a large room to cover, consider using two smaller diffusers together for more even coverage. You can also use a nebulizing diffuser, which doesn’t require heat to distribute oil and can produce more concentrated scents. But these models can be more expensive and difficult to clean. Also, be careful not to place the diffuser near a heating source, as this can damage the internal components of the diffuser.


Using the best essential oil diffusers is a great way to enjoy the benefits of aromatherapy without having to apply oils directly to your skin. But how many drops of oil should you add to the device? This can be tricky to figure out, but there are a few factors that you should take into account.

The Room Size: A more prominent space may require more drops of oil to spread the scent throughout. The Oil’s Intensity: Certain oils have more intense smells than others. For example, eucalyptus and peppermint are more potent than lavender.

Check with a vet if you have pets before diffusing any essential oils around you. Some of the oils can be toxic to pets if inhaled. Also, make sure the device isn’t in direct contact with any materials that could get damaged by the vapor.


A diffuser is designed to emit a stream of water vapor and essential oil quietly. That being said, some models can produce loud noises that are a nuisance.

One of the most common causes of loud noises is when the water level in the reservoir is low. This is easily fixed by refilling the tank.

Another cause of noise is when a buildup of debris clogs up the machine. This can be anything from rocks, small pieces of paper, or even dried essential oils. You can fix this by taking the diffuser apart and removing any debris that is stuck in it.

It’s also important to use quality essential oils in your diffuser. Nelson recommends looking for ones that have been distilled using clean methods labeled as safe for aromatherapy. Also, always read the label and know which oils are safe for pets.

Vapor Output

Essential oils can be a great addition to your daily routine, but you’ll want to choose the correct device to ensure maximum effectiveness. The vapor output is the amount of mist the diffuser can produce as it emits essential oil scents into the air. The higher the vapor output, the more space it can cover with your preferred aroma.

The simplest type of oil diffuser uses heat to vaporize water, just like puddles and oceans do when exposed to warmth. These vapors are then carried by the air, spreading the fragrance of the oils with them.

Consider the device’s water capacity and estimated operating time to determine the best model for your needs. You’ll also want to look for additional features you may be interested in, such as a built-in humidifier or pre-set relaxing sound options. However, if safety is paramount, choose an automatic shut-off function device.


There are a wide variety of essential oil diffuser designs. Choose one that fits in with your home decor and matches the overall look of your space.

Some diffusers are made of glass or ceramic, while others are made of wood, bamboo, or metal. A few can even double as Bluetooth speakers and play music, adding a nice touch to your home decor.

Regardless of your style, keeping safety in mind when using an essential oil diffuser is important. Opt for a natural essential oil diffuser without chemicals or artificial fragrances. Additionally, avoiding putting too many drops of essential oils in your diffuser is crucial.

These scents are highly concentrated and can be toxic if inhaled in excess. Nelson recommends following the instructions on your oil bottle to determine the proper dosage. You should also check with your doctor before experimenting with any essential oil.


Essential oil diffusers can command the price tag based on design and features. Look for a model that offers both form and function by choosing one that fits your space and is easy to relocate from room to room. A portable-sized diffuser also allows you to take it with you on the go to reap the benefits of aromatherapy anywhere.

Consider this ceramic diffuser with seven LED color options and silent operation for a budget-friendly pick. Users like that it operates as a humidifier shuts off when the water level is low, and has four timer settings. Its only drawback is its relatively small water capacity of 100 milliliters, so it might not be practical for large rooms.


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