But what if you already have a humidifier?

Not all humidifiers are made to be used with essential oils.
Though most and more the popular brands like Levoit and TaoTronics have begun to include the aromatherapy tray as a basic accessory, most of the humidifiers you see in the vitamin department of Walmart or Dollar store are basic low cost water misters that use cheap plastic.
1. Cheap Plastics
Humidifiers seem to be the perfect solution for not only humidifying your room but being able to get the benefits of the essential oils at the same time. But unfortunately with some types of humidifiers, that is just not the case.
The plastic that the basic humidifier without a essential oil tray is not made to withstand the corrosive oils that are put in essential oil scents.
You will find if you put essential oils in the basic big box store humidifier, that the plastic inside of the humidifier will begin to crack and eventually crack open.
Granted, even though these humidifiers maybe made cheaply, they or also not very expensive.
2. Clogging
Putting oil into a humidifier is asking for your humidifier to eventually clog up. Even though most essential oil may seem to have a watery texture, they are still mixed with a carrier oil even if lightly so.
Eventually, if the plastic doesn’t crack open, you will have to deal with your nozzle getting clogged.
Oil and water do not mix.
3. Warm mist humidifiers
Essential oils are not meant to be boiled and heating them will diminish their healing effects.
Warm mist vaporizers heat the water to a boiling point.
You might think because the water gets so hot that the likelihood of clogging would not be an issue when adding oil to the water. That’s a Good point.
But it doesn’t negate the fact that heating the essential oils can reduce the benefits of using them in the first place.
Warm mist vaporizers like the Vicks vaporizer actually have a tray to put the Vicks ointment.
4. Timer limitations
Essential oils are not meant to be breathed in continuously. In fact, 15 minutes is about to limit that you want to diffuse an essential oil.
Most humidifiers do not come with built-in timers, and if they do, then there is a good chance that they already have a proper aromatherapy tray included with them.
The basic cool mist humidifier is a “just add water” and turn it on till the water runs out type of humidifier.
And that is what it is made for, to humidify the room.
Once you add essential oils to the mix, then you have to set a limit on how long you’re going to use the humidifier or else risk overdoing it with the essential oils.
Which reduces the amount of time that you’re using the humidifier to do the job it was made for, which is add humidity to the air.
A vicious circle.
5. Climate
The need for aromatherapy without the need of a humidifier.
Humidifiers are seasonal. And for most people, they’re only useful for about half of the year. Why is that? The climate.
There are certain times of the year when adding more humidity to your air is not only not needed, will make you feel uncomfortable to say the least.
Even If you could use a humidifier to disperse essential oils without it having any negative effect so ever on the humidifier,
You would still be limited by the fact that humidifiers are not needed all year and you cannot use the humidifier without it humidifying.



Conclusion
The Best policy is just to get the right humidifier that is made to be combined with the diffuser or to buy a humidifier and a diffuser separately.
I lean towards the latter.
Why?
Diffusers are very small and they are made to disperse essential oils correctly.
They’re much more mobile than a humidifier because of their size, and there are different types of diffusers that do not require adding water at all.
Not only that, the price of a diffuser without all the bells and whistles is about 10 bucks and it will properly diffuse my essential oils, which do cost a lot, without over doing it or wasting them.