1. There Are Different Types of Oil Diffusers
There are different types of diffusers available on the market, each type bringing its own features to the table. Here are the most popular types of diffusers and their main traits:
- Ultrasonic diffusers require water for their functioning. They produce high-frequency vibrations that disperse fine water-essential oil mist into the air. Ultrasonic diffusers are extremely popular because of their safeness, quietness and easy maintenance.
- Nebulizing diffuser is the most powerful type of diffuser. Nebulizer diffusers disperse mist into the air directly from the essential oil bottle without the use of heat or water. Dispersed nano-particles are not adulterated.
- Heat diffuser evaporates essential oils with the help of heat generated by a candle. The construction of these diffusers resembles a small fireplace with a try above the flame.
- Evaporative diffusers use a fan to spread the oil essence from a cotton pad or filter into the air. The downside of this method is that heavier molecules within oil sink to the bottom of the cotton pad while the lighter ones stay at the top.

2. Space Coverage and Vapor Output
You have to keep in mind the size of the room in which you intend to use your diffuser. Heat, evaporative, and ultrasonic diffusers with a water reservoir below 300 ml are sufficient for kids’ rooms, bathrooms, offices, and other small places. Large rooms, on the other hand, require diffusers with much strong vapor output.
3. Time Settings
Time settings allow us to determine the duration of our aromatherapy. Ultrasonic diffusers are known for their variety of options and settings. More often than not, their timer can be set for an hour, 3 hours, 6 hours or on continuous mode. If you plan on using the diffuser during sleep, look for a unit with an 8 hour time setting with an auto-shutoff feature. The automatic shutdown will give you a piece of mind during the night.
4. Noise Level
Diffusers with a large fan and rough motor can be quite noisy and frankly annoying. If you are easily distracted by buzzing noise or if you are a light sleeper you may want to purchase a heat or ultrasonic diffuser. Heat diffusers have no motor while ultrasonic diffusers emit silent hum that will not ruin your aromatherapy experience.
5. Price and Guarantee
Price quite often determines our final purchase decision. The cost of diffusers varies based on their price, features, and brand name. The starting price of nebulizers is about $50 while ultrasonic diffusers can be found even below $20.










