Details come from the older review, the maker’s claims and the Amazon listing, checked on October 11, 2026. Noise and run time are maker claims. The old page linked an older listing, and this page uses the current Amazon listing.
The Everlasting Comfort 6L ultrasonic humidifier is a popular, low-cost bedroom unit with a big tank. It is quiet and simple. Here is a plain look at what it does and what it lacks.
Table of Contents
What You Get
Price on Amazon: $49.99 | 4.3 stars from 21,360 ratings (checked October 11, 2026)
Design and Size
The unit looks modern and sleek, with an easy control panel and a light knob. The older review gave a 1.6 gallon (6 liter) tank, a size of about 14.4 by 12.3 by 8 inches and a weight around 4 pounds. It suits a bedroom, kids room, living room or office. The tank is heavy once it is full, so fill it on the base, as the older review advised, to avoid drips.
Looking ahead, big-tank ultrasonic humidifiers like this one are what most bedroom buyers pick now: top-fill, quiet and cheap. More of them add sleep modes, humidity sensors and app control. The catch is that a big tank does not make a better humidifier, only a longer-running one, and a big tank that is not cleaned grows more to worry about.
Features and Performance
- Ultrasonic cool mist. No wick or filter to replace. The listing calls it a filterless design with a wide tank opening.
- Run time. The listing says up to 50 hours on one 6 liter fill.
- Adjustable mist and 360 degree nozzle. Spread the mist across the room.
- Oil tray. Add a few drops of essential oil to the sponge. Do not put oil in the water.
- Auto shutoff. It stops when the tank is empty.
- Coverage. The older review suggested a room of up to about 400 square feet.
The older review noted that cleaning takes time and that the unit has no humidity display. A hygrometer fixes the second one.
The risk to watch is humidity and mist quality. This model has no humidity display, so it can run on and push a small room past 50 percent. Tap water minerals also turn into white dust. Expect more listings with long runtime claims. Use a hygrometer, use distilled water and clean the tank every few days.
Noise and Upkeep
The listing says it is whisper quiet and the title says 28 dB, while the older review said around 40 dB. Either way, it is one of the quieter types because it has no fan. Empty and dry the tank every day, and clean it weekly with vinegar. See why a humidifier leaves white dust, and check humidity with one of the indoor hygrometers.
Everlasting Comfort vs Other Bedroom Humidifiers
The Levoit 4L and 6L are close rivals with strong ratings. For quiet picks, see our list of quietest humidifiers, and for the bedroom see humidifiers for the bedroom. For sizing, read how to choose the right size humidifier.
Prices and Alternatives on Amazon
Prices and ratings were checked on Amazon on October 11, 2026.
Price on Amazon: $49.99 | 4.3 stars from 21,360 ratings (checked October 11, 2026)
The Everlasting Comfort 6L is the model reviewed here. The Amazon title calls it 28 dB, a top-fill unit with auto shutoff, and the listing says it runs up to 50 hours. It has a 4.3 rating from over 21,000 ratings. The older review rated the noise around 40 dB, so treat the decibel figures as maker claims.
Price on Amazon: $43.99 | 4.5 stars from 27,657 ratings (checked October 11, 2026)
The LEVOIT 4L has a 4.5 rating from over 27,000 ratings.
Price on Amazon: $99.99 | 4.4 stars from 26,754 ratings (checked October 11, 2026)
The LEVOIT 6L has a 4.4 rating from almost 27,000 ratings.
Price on Amazon: $61.42 | 4.5 stars from 18,245 ratings (checked October 11, 2026)
The Vicks Filter-Free has a 4.5 rating from over 18,000 ratings.
Pros and Cons
Pros: large 6 liter tank; quiet ultrasonic design; essential oil tray; auto shutoff; no filter to replace; low price.
Cons: no humidity display; cleaning takes time; heavy when full; ultrasonic mist can leave white dust.
FAQ
Does the Everlasting Comfort humidifier need a filter?
No. It is a filterless ultrasonic unit.
How long does a tank last?
The listing says up to 50 hours on low. It is shorter on high.
Can you put essential oil in the tank?
No. Use the oil tray only, as the older review warned.
Final Word
The Everlasting Comfort 6L is a good low-cost pick for a bedroom. Add a hygrometer, use distilled water and clean it often.
What happens next: expect quieter units with built-in humidity readouts at the same price. For a bedroom, a 6 liter ultrasonic unit with an oil tray is still a simple, low-cost choice.
Related Guides
Keep going with quietest humidifiers, humidifiers for the bedroom, why a humidifier leaves white dust, how to choose the right size humidifier and indoor hygrometers.
