Best Humidifier and Diffuser Combo Units – Buyer’s Guide 2024

Home / Blog / Best Humidifier and Diffuser Combo Units – Buyer’s Guide 2024

Are you looking to buy a Humidifier and Diffuser Combo? Here’s everything you need to know while choosing the best diffuser humidifier that suits your need.

Optimal humidity levels are essential to maintain health and comfort, especially during the winter months when the air in indoor spaces becomes dry. Humidifiers help regulate air moisture to improve dry conditions, so you can sleep easier at night and breathe better during the day. They help treat conditions such as dry skin, irritation, and even some symptoms caused by the common cold.

Best HUMIDIFIER AND DIFFUSER COMBO

An oil diffuser uses ultrasonic technology or controlled air movement to diffuse essential oils in the air for aromatherapy purposes. You can mix a few drops of the concentrated essential oil with water into the tank, and the diffuser disperses a cool scented mist into the room. 

Diffusers are generally much smaller and are not meant to add large amounts of moisture to a room. There are four essential oil diffusers: ultrasonic diffuser, nebulizing diffuser, heat diffuser, and evaporative diffuser.

Oil diffusers can be used for a variety of uses, from creating refreshing scents around the house, masking unpleasant odors from pets or smoke, and freshen the air. Some oil diffusers can also be used with a nebulizer and humidifier to improve the air quality and help with colds and flu.  The essential oils in diffused are dispersed with a nebulizing diffuser, making it easier for your body to absorb it to have a relaxing or stimulating effect, especially useful if you have dry skin.

Why Buy Humidifier and Diffuser Combo

Usually, diffusers and humidifiers are used as two separate devices. But with technological advancement, many companies are offering a combination of two in a single unit, eliminating the need for two different instruments, making it cost-effective and energy-efficient. 

These combo units are majorly humidifiers that can spread a large amount of mist and are equipped with a tray where you can add essential oils that can be dispersed with the mist without that oil damaging the device.  Note that a humidifier will not only distribute the oils in the air and not nebulize it. 

5 Best Humidifier and Diffuser Combo (With Reviews)

1. Homasy 2.5 L Cool Mist Humidifier and Essential Oil Diffuser

Homasy 2.5 L Cool Mist Humidifier and Diffuser

The Homasy ultrasonic humidifier combines the humidifier’s goodness and the essential oil diffuser in one unit. The device is essential oil compatible and releases a powerful and long-lasting mist that helps moisturize the dry air in your home, improve sleep quality, and alleviate discomfort. You can directly add dabs of essential oil to the water tank and enjoy a long-lasting fragrance. The cool mist humidifier delivers 360° uniform humidification so that you can breathe the fresh air even far away from the humidifier.

The Homasy humidifier features a 2.5-liter semi-transparent tank that can humidify any room for up to 30 hours in low mist mode and reduces the need to refill the tank in the middle of the night and disturb your sleep.  The ultrasonic humidifier is engineered with a one-piece and top fill design, making it easy to refill and clean. No need to remove the water tank; twist the cover down and directly add water through the large opening top.

The Homasy humidifier comes with an adjustable mist level that can be easily selected with a touch of a button at your desired level. You can choose between high mist mode, low mist mode, and sleep mode. The humidifier will turn the indicator light off in the sleep mode. This cool mist humidifier comes with an automatic shut-off mode that will automatically shut off with a red LED light indicator when it runs out of water. 

Homasy ultrasonic cool mist humidifier works on a 28dB whisper-quiet operation, while the considerate sleep mode allows you to sleep soundly without disturbance. The humidifier is made from child-friendly material. The manufacturer recommends cleaning the humidifier once a week with a citric acid solution to prevent any unpleasant odor, scale, and dust growth and promote efficiency.

Pros

  • Large Water Capacity
  • Multiple Mist Mode
  • Long-Running Time
  • Colored mood lighting
  • Whisper-quiet operation

Cons

  1. You cannot remove the Water tank 

Why Buy: The aesthetically pleasing Homasy cool mist humidifier provides long hours of uninterrupted operation to keep your house moisturized. At the same time, the color-changing lights and essential oil enhance the experience.

2. Everlasting Comfort Cool Mist Humidifier for Bedroom with Essential Oil Tray

Everlasting Comfort Cool Mist Humidifier

The Everlasting Comfort features a 6 liter (1.6 gallons) reservoir and a powerful mist output of up to 9 oz. (270ml) per hour. The cool mist humidifier can cover up to 500 sq. ft. and is designed to last up to 50 hours before refilling. This air humidifier is suitable for large rooms, offices, nursery, or college dorm.

The Everlasting Comfort comes with an essential oil tray. The oil diffuser humidifier circulates the oils into the cool mist, giving you a clean, pure, and fresh smelling aroma and enjoy a more restful night. The ultrasonic humidifier features a unique filter less design that doesn’t require costly filter replacements every couple of months, making it both economical and sustainable.

The Everlasting Comfort is equipped with an auto shut-off feature that will automatically turn off the device once it is out of the water, ensuring your safety and preventing any damage to the machine. Equipped with ultrasonic technology, the vaporizer humidifier produces near-silent frequency(less than 30 DB) so you can comfortably ensure your home’s optimal humidity level, making it suitable for baby rooms and bedrooms. The LED-lit water level window makes it easy to see when they need to be refilled. The Everlasting Comfort humidifier comes with a two-year replacement policy. 

Pros

  • Unique Filterless Design
  • Large Water Tank
  • Powerful Mist Output
  • Extremely silent

Cons

  • No handle to carry the tank
  • No top-fill opening of the tank

Why Buy: The Everlasting Comfort humidifier functions efficiently without any hiccups. You can adjust the intensity, and its massive reservoir volume ensures you don’t have to fill it frequently, providing long lasting comfort.

3. LEVOIT Top Fill Ultrasonic Air Humidifier, Essential Oil Diffuser with Smart Sleep Mode

LEVOIT Top Fill Ultrasonic Air Humidifier and Diffuser

The Levoit Dual 100 acts as both a humidifier and an aroma diffuser, letting you add essential oils directly into the base for aromatherapy.

The compact humidifier comes in a cylindrical shape, measuring 7 inches in diameter and 10.6 inches in length.  The outer case is constructed from white ABS plastic, with a glossy finish that’s attractive and easy to clean. There’s a rubbery brown cap covering the top-loading tank at the top, so you can fill the tank without requiring to disassemble the whole machine.  For easy refills and clean-up, remove the lid at the top of the Dual 100 to directly access the water tank.

The tank is made of incredibly safe materials, and it is BPA-free, CA65 tested, and ETL-listed.  The water reservoir has a capacity of 1.8 liters or just under half a gallon. Depending on the intensity setting, it provides from 8 to 20 hours of operation, making it suitable for bedrooms, offices, and other small to mid-sized rooms. You can set it on your little one’s nightstand, and rest assured that you’re treating their lungs with care. Besides, the Dual 100 will automatically shut off when the water runs out. This ensures that none of the parts will get damaged if you forget to refill the tank.

The Levoit Dual 100 features Spiral Air Duct Technology that produces an ultra-fine mist and humidifies the room without wetting the floor or any furniture. The machine comes with an adjustable mist level that allows you to select between 3 mist outputs to create a comfortable environment. The Dual 100’s mist levels reach speeds of 220mL/h and heights of up to 100 cm, quickly and efficiently spreading humidity throughout your environment.

You can turn the lights off entirely with sleep mode.  Auto Shut Off: When its water level is low, or the tank is removed.   Intelligent Sleep Mode: Automatically maintain a comfortable humidity level to let you sleep soundly. The manufacturer cautions not to add water directly into the base and be careful when cleaning or emptying the base or tank to prevent water from getting inside the air outlet. Also, ensure that when assembling the mist tube after cleaning, it aligns with the mist outlet. 

Pros

  • Easy to refill and clean
  • BPA free CA tested and ETL listed
  • Quiet operation
  • Spiral air duct technology ensures that it won’t cause dripping.

Cons

  • Only suitable for small rooms.
  • Diffuser function isn’t effective
  • Should be used with purified or distilled water

Why Buy: The Levoit Dual 100 Ultrasonic humidifier is an excellent option if you are looking for a device that provides the benefits of a humidifier and diffuser for various oils. The humidifier is easy to use and even simpler to clean, and lightweight to be easily carried from room to room if needed.

4. JBTOR Ultrasonic Humidifier, Essential Oil Diffuser Vaporizer 

JBTOR Ultrasonic Humidifier Diffuser


The JBTOR Ultrasonic humidifier and essential oil diffuser uses ultrasonic high-frequency oscillation of 2 million times per second to atomize water into ultra-fine particles and negative oxygen ions of 1 to 5 micrometres to continuously moisturize the air for more than 28 hours and create a comfortable living environment.

The JBTOR Ultrasonic humidifier features a built-in humidity sensor that senses the room’s humidity and temperature in real-time to control the environment properly. The large LED screen displays accurate real-time humidity and temperature and comes with options to select low, medium, and the high haze and create the desired humidity level. Its 360° rotatable nozzle makes it easy to adjust the direction and speed of the spray. The humidifier features various intelligent functions and mode selection, including sleep mode, timing mode, child lock, and night light.

The JBTOR humidifier generates a low noise level of 32-34 decibels, allowing you to enjoy night-time fog and humidifier in the night. The machines come with an auto shut off feature that will shut down the device when the water level is low or the tank is removed. The large 1.2 gallons/ 4.5 l tank is made out of ABS and has a flat surface and water inlet that let you clean and dry the tank manually. The top-fill design allows you to easily open it to add water to the tank without even taking out the tank to refill it, making filling up a breeze.  The manufacturer recommends not to add water directly into the mist tube or base and add the essential oil in the sponge ring.

Pros

  • Large capacity tank
  • Top filling design
  • Low sound generation

Cons

  • It’s not a full-fledged diffuser

Why Buy: The JBTOR humidifier works efficiently and is very easy to maintain. It generated very low to zero noise levels and would also be a great addition to the decor for your room.

5. GENIANI Smart Aroma Ultrasonic Humidifier & Essential Oil Diffuser

GENIANI Smart Aroma Ultrasonic Humidifier and Diffuser

The Geniani Huron 2-in-1 humidifier and diffuser allows you to fill your room with your favorite essential oils while enjoying the humidifier’s cool mist. Featuring a 4 liter (1.05) gallons water tank can provide uninterrupted operations for 18 hours and cover spaces up to 220 sq. ft. Red Dot Design Award awarded the Huron humidifier the top feeding humidifier in 2019.

The Geniani Huron humidifier comes with a built-in intelligent sensor that allows you to maintain an optimal humidity level automatically. You can also manually adjust the moisturizing speed by choosing a low, medium, or high setting. Featuring a top fill design, the cool mist humidifier gives two ways to fill the water tank. You can remove the lid to fill up the tank or pour the water directly into the particular hole in the lid. To clean the machine, remove the cover and wipe the empty tank with a wet cloth. No more arm gymnastics!

The Geniani Huron humidifier features a four mist setting and humidifies the room at the 38dB noise level, as quiet as a ticking clock. The control button is right in the front and easy to access. There are several levels, so you can set for a little humidity or more depending on how much moisture you need. The optional LED night light can be turned off in seconds. The device also ensures the ultimate baby safety by shutting down automatically if there’s no water in the tank. The cool mist humidifier comes with a 2-year risk-free warranty.

Pros

  • Low Sound Generation
  • Easy to fill and clean
  • Strong Mist Output
  • It lasts a very long time on auto-humidify
  • Tank light indicator 

Cons

  • Vapor cannot be directed, so it goes straight up

Why Buy: The Geniani Huron humidifier is easy to fill and functions correctly. It can be used with or without essential oils, has almost no noise, runs for 18 hours, puts out a substantial mist, and is very easy to clean.

These are some great products you can consider when purchasing a humidifier and diffuser combo to maintain optimum humidification in your house with a bit of aromatherapy. However, if you’re looking to fully utilize the essential oils’ therapeutic benefits, nebulizing diffusers would be more suitable.

See also: