The 7 Best Essential Oil Diffusers For Large Rooms Reviewed

Aromatherapy is a form for alternative medicine. It is an inexpensive method of taking care of a number of health issues. It involves the use of essential oils, placed in an oil diffuser to warm the oil and mist it into the air for inhalation.

The essential oils come directly from the plant, giving you all the health benefits of nature. Not all diffusers are created equally, so it’s important to know what to look for when choosing the one you want to use in your home.

Best Essential Oil Diffusers For Large Spaces

1. Advanced Aromatherapy Essential Oil Diffuser by DoTERRA

This nebulizing essential oil diffuser is the ideal choice for the best therapeutic benefit because it does not use heat or water to diffuse the oils into the air. Timers are built in to keep the diffuser running for short periods of time for maximum benefit and to prevent “nose fatigue” from getting used to the scent of an oil after a while. You’ll also get defense against airborne viruses and bacteria. While it is more expensive than others on our list, it has to do with the quality of the product and the type of diffusing technology.

2. Spa Vapor Advanced Wellness Instant Healthy Mist Therapy by Green Air

This BPA free unit works with purified water. It uses a ceramic disc to prevent corrosion and breakdown after continued exposure to the oils. The unit features six color LED lights that can be used to create mood lighting, or turned off altogether. You can use this unit for a room of up to 500 square feet, and get up to six hours of diffusion time. The automatic shut off feature keeps the unit safe. You can purchase multiple units in a pack, up to six, to keep one in all rooms of your home.

3. Lull Ultrasonic Aromatherapy by QUOOZ

This ultra-high capacity diffuser will hold up to 200 ML of water for longer diffusion times, for up to eight to 10 hours of use. The auto-shut off feature turns the unit off when the water starts to get low, so you can use it safely at night. It provides optional soothing light, you can set for your preferred brightness, or have it gradually brighten to assist with meditation and relaxation. It’s available in several colors, including: blue, gray, orange, and green.

4. Allay Aromatherapy Diffuser LED by ZAQ

Available in blue, yellow, and pink, you can choose the diffuser that best fits your style. You can run this diffuser for three to four hours and it has an automatic shutoff feature. It produces no condensation, and features soft LED lighting, as well as a no light mode. It will cover anywhere from 200 to 300 square feet of space.

5. 2-in-1 Ultrasonic Aroma Diffuser & Humidifier by BriteLeafs

This unit has four built in timers for 30 minutes, 60 minutes, 120 minutes, and 180 minutes. The humidifier will help will dry skin, cough, and sinus issues. This unit works well for rooms up to 220 square feet.

6. Smiley Daisy Essential Oil Diffuser and Mini Cool Mist Humidifier

With the interval option on this diffuser, it will diffuse in cycles to conserve water and oil, so you can get about 10 hours of use out of it on a single tank. This makes it a great choice for overnight use. The auto shut off feature will stop the unit when the water runs low.

7. Ultrasonic Oil Diffuser by NOW Foods

This unit is BPA free and does not use heat to diffuse the oil, to keep the integrity of the oil in tact. When the water is low, the unit will automatically shut off for safety. It features multiple LED lights for mood, if desired. The mist will last for three to four hours.

Types of Diffusers

An ultrasonic diffuser uses electric frequency to create vibrations. These vibrations move to where the oils float, and evaporate the oil so it is diffused into the area without heat. Since heat can break down the oils and interfere with the quality of the oil’s benefits, the ultrasonic diffuser is a good choice. The process also produces negative ions that can help calm the body and surrounding environment.

An evaporative diffuser uses air that blows through a filter and evaporates the oil through it. Since lighter oils will diffuse faster than heavier oils with this method, you may not get the same quality health benefits as you would from the whole oil, but it will still do a decent job of getting the aroma in the room. It runs quietly, too.

A nebulizing diffuser breaks down the oil into super fine tiny drops, and then sprays them into air, to atomize and ionize the oil so you get the maximum therapeutic benefit. This diffuser should be used with thin oils that haven’t been diluted.

Heat diffusers are not ideal for the therapeutic use, because the heat will destroy the quality of the oil. Using this type of diffuser is good for making your room smell good.

Reed diffusers use reed sticks placed in the oil to soak it up and release it into the air. Reeds can hold the scent for months, but the affected area is small, and the scent is light, so they are better used for fragrance, rather than therapeutic purposes.

Candle diffusers use a small candle to heat the oil so it will evaporate and release the aroma. They are much like the ultrasonic diffuser, but do not require electricity to run.

Aromatherapy is not intended to replace professional medical care. It is intended as a complementary therapy. If you have a health condition that does not improve with the use of aromatherapy, seek care from your family doctor or another health care provider as soon as possible.

How To Diffuse Essential Oils

Here is a great YouTube video that demonstrates how to diffuse essential oils, and talks about some of the benefits:

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