HealthSmart 500ML Essential Oil Diffuser for Large Rooms, Cool Mist Humidifier and Aromatherapy Diffuser, Adjustable Timer, M

4.3 4.3 out of 5 stars | 12,306 ratings

Price: 12.73

Last update: 02-19-2026


About this item

  • Plastic
  • Oil diffuser will automatically and safety shut off once the water runs out so the unit doesn't overheat. The 500mL tank is large enough to use in any size room and the tank is easy to clean and maintain so the unit lasts for years
  • Diffuser for essential oils features a smart touch panel to easily control the lighting, high or low mist mode and a 1hr/3hr/6hr timer that will keep misting until the water runs out.
  • Colorful mood light has the ability to cycle through 7 different colors or stay on one. It is great for creating a calm uplifting atmosphere during meditation or to use as a night light. It can be used as a humidifier or as a room air freshener
  • Aromatherapy diffuser's compact design is sleek and modern. The beautiful and modern wood grain base complements any room. It is the perfect apartment essential, dorm essential or new home essential to bring peace and tranquility anywhere
  • Diffuser product specs: Scent diffuser comes with an AC adapter (located inside the tank), 6ft power cord and user manual. Essential Oils sold separately. For best results, use distilled water.

  • Is Discontinued By Manufacturer ‏ : ‎No
  • Product Dimensions ‏ : ‎2 x 5.5 x 9.4 inches; 1 Pounds
  • Item model number ‏ : ‎40-500-190
  • Date First Available ‏ : ‎April 13, 2018
  • Manufacturer ‏ : ‎HealthSmart
  • ASIN ‏ : ‎B07C683MBH
  • Best Sellers Rank:#1,388 in Health & Household (See Top 100 in Health & Household)
    • Aromatherapy Diffusers
  • Customer Reviews:
    4.34.3 out of 5 stars(12,304)

Top reviews from the United States

  • Great diffuser.
    It works very well! It's a bit confusing at first but after a short while, it's easy!
  • Great Value for the money
    Bought this diffuser at a reduced price through Amazon Resale. Listed as used-Like New. The box had been opened but the product had not been used. There was no operating instructions included but item was pretty self-explanatory. I Googled the item and was able to get instructions for use there. The diffuser works perfectly. Lights up with several color choices. Has four timing choices with auto shutoff and comes with power supply. Emits a calming mist and scent when using your favorite oil. Good value for the money spent.
  • ????️ Review: Mini Ultrasonic Cool Mist Humidifier
    This small home humidifier has been a total win for my space. I was looking for something compact enough to sit discreetly on a nightstand, but still powerful enough to make a noticeable difference—and this model hits the mark.

    ✅ What I Love:
    Size & Portability: It’s lightweight, easy to move between rooms, and perfect for bedrooms, offices, or even travel.

    Quiet Operation: Runs with a soft hum that’s barely noticeable—ideal for sleeping or working.

    Auto Shut-Off: Great safety feature—turns off when water runs out, so I never worry about leaving it on too long.

    USB Powered: Super convenient to use with laptop chargers or power banks if needed.

    ???? Performance Highlights:
    Keeps air comfortably moist during dry seasons or when using indoor heat.

    Helps reduce skin dryness, nasal irritation, and static.

    Can run for several hours on a single fill, depending on the model.

    ???? Things to Consider:
    Water Capacity: The tank is small, so it may need to be refilled daily for continuous use.

    Limited Coverage: Best for small rooms—won’t effectively humidify large areas.

    Minimal Features: Some models don’t include timer settings or adjustable mist levels.

    ???? Overall:
    If you want a reliable, affordable humidifier for a small space, this one delivers excellent value. It’s simple, efficient, and perfect for personal comfort in dry environments without taking up much room. It doesn't last that long because of the pink mold that you constantly have to clean out but I just clean it well with vinegar and use distilled water.
  • Works for price
    Pumps out a lot of mist for the size! It makes a slight humming noise which is actually quite a relaxing sound to fall asleep to with occasional bubbling of water sound. It is very easy to set up and refill. It states in the directions that you can use sink water, but I’m going to stick to fridge water. The color changing light is a nice touch! I had no idea it had that feature upon purchase. The only downfall is the touch-buttons to turn on. It does not work very well, it takes me pressing the area about 10 times before it will turn on, and I just purchased it yesterday. Once it is on though, it stays on.
    I ordered this because I got laryngitis from yelling/talking for too long 2 nights in a row. I needed more humidity because my throat was so dry. It really helps! I’m sure it is good for my skin too
  • Great Deal
    great product
  • Exasperating!
    I normally read the negative reviews, not because of being negative, but just want to know what to look for, but this time I didn't. There were so many positive reviews, I took my chance. While it's a neat little thing, it's as annoying as all get out. Sometimes the buttons work just right and the mist can be seen, other times, nothing. Directions say to touch the button lightly one time to change the mist, I touch it lightly and it turns off and I have to start all over again. I follow directions to set the color setting and it shuts off, start again. It takes several tries to get it where I want it. The concept is good, the appearance, just right, but the workability of it gets frustrating. I'm curious to see if I get any longevity out of it or if will quit on me like it did other buyers. I definitely wouldn't buy it a second time. Glad it was for me and not a gift.

    I am writing a follow up review. I finally got the buttons to work like I want them to and that feature worked out, it gives off a nice puff of vapor but I'm going to have to quit using it as the plug is getting really warm, rather hot to the touch. I'm worried of it starting a fire as it's not normal for a plug to get hot. That's an indication of something not right. So I guess it'll have to go to the garbage. I'm now afraid of what the hot plug means. I don't want to take a chance of it causing a fire.

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