The Vornado EVDC300 is an evaporative humidifier intended for use in large rooms. Its main selling point is its energy-efficient DC fan motor, which draws less power than other humidifiers with comparable coverage. It has a 3.8L tank and an advertised coverage of 750 ft².
Our Verdict
The Vornado EVDC300 is okay for general home use. Its capacity is sufficient for large rooms, and it consumes very little energy, so it won't impact your energy bill too much. It can be a bit of a nuisance to clean, but it's also far from the worst offender on the market, with most of its components being pretty easy to access. Unfortunately, it is quite noisy, so it can be somewhat annoying if you have it set up in a bedroom while trying to get some sleep or in a living room while watching TV.
Long runtime.
Excellent overall efficiency.
Decent humidification capacity.
Noisy operation, even at low fan speeds.
Can be a minor nuisance to clean.
The Vornado EVDC300 is sub-par for use in bedrooms. It's fairly compact for a whole-room unit, but unfortunately, it's pretty loud at its highest humidification setting, to the point where it might keep you up if you leave it running overnight. On the upside, it has a pretty long runtime, thanks to a fairly large water tank. Its built-in humidistat also allows for set-it-and-forget-it operation.
Long runtime.
Excellent overall efficiency.
Noisy operation, even at low fan speeds.
Can be a minor nuisance to clean.
The Vornado EVDC300 is fairly simple to clean. Few parts need to be cleaned, and accessing them is generally fairly easy. Unfortunately, bigger components like the tank and base aren't dishwasher-safe and do need to be cleaned by hand.
Can be a minor nuisance to clean.
The Vornado EVDC300 has good overall capacity. It's well-suited for use in large and medium-sized rooms.
Decent humidification capacity.
The Vornado EVDC300 has excellent overall efficiency. Even among cool misting evaporative units, its power draw is impressively low, especially relative to the amount of moisture it outputs.
Excellent overall efficiency.
Performance Usages
Changelog
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Updated Oct 21, 2026:
We've included a link to the Levoit Superior Studio 450S in the Noise section for users seeking a quieter alternative.
- Updated Nov 22, 2024: Review published.
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Differences Between Sizes And Variants
The Vornado EVDC300 is only available in a single color variant: 'White.' For those interested, here's the label.
Let us know in the comments if you come across another variant of this humidifier.
Popular Humidifier Comparisons
The Vornado EVDC300 is a mid-range evaporative humidifier. Its main selling point is its energy-efficient brushless DC fan motor, resulting in a much lower power draw than other evaporative humidifiers like the Vornado EV200 while offering comparable humidification capacity.
The Blueair InvisibleMist is an easier humidifier to live with than the Vornado EVDC300. Both are evaporative humidifiers with similar tested humidification capacity, but the Blueair is less tedious to clean and uses a top-fill tank, while the Vornado's bottom-fill design and more involved maintenance make regular upkeep less convenient. The Vornado does last longer between refills, though.
The Levoit Superior Studio 450S is a better humidifier overall than the Vornado EVDC300. Both are evaporative humidifiers with similar humidification capacities, which makes them suitable for larger bedrooms and living spaces. The Levoit is much easier to clean, though, with several dishwasher-safe components and a machine-washable wick that saves you from scrubbing everything by hand. It also has app support, so you can monitor humidity levels and adjust settings remotely, while the Vornado relies on physical controls. The Vornado's main advantage is its better energy efficiency, so it's worth considering if you want to minimize electricity consumption over long periods, though neither is likely to cause a big spike on your power bill.
Test Results
The Vornado EVDC300 is reasonably simple to clean. Only five parts need to be cleaned periodically, not including the wick, which needs replacing every four to eight weeks. All of them are pretty easy to access, except the exhaust fan grille, which requires you to remove a retaining screw first. The tank and base aren't dishwasher-safe and need to be cleaned by hand, but on the upside, there aren't any difficult-to-reach crevices or corners within the base plate itself.
The Vornado EVDC300 is equipped with a humidistat, allowing you to set your desired humidity level, have the humidifier reach that level, and then turn it off without needing manual intervention.
This unit's brushless DC (BLDC) fan motor makes it noticeably more efficient than the majority of other evaporative models on the market, including other Vornado models like the Vornado EV200 or the Vornado EV100. Compared to a shaded pole motor, more energy from the coils in a BLDC motor actually goes towards spinning the rotor inside.
This humidifier's overall efficiency is excellent. It's a great option for hot and dry climates, where the cooling effect of its mist can decrease ambient temperature. However, using the EVDC300 in cold and dry months can force your heating system to work harder to maintain a comfortable, stable temperature, increasing your energy bill.