Vornado EVDC500 Review: Energy Smart Evaporative Humidifier for 1,000 sq ft
Vornado's EVDC500 is an evaporative humidifier for rooms up to 1,000 sq ft, with dual 1 gallon tanks, an electronic humidistat, 4 fan speeds and a DC motor.
By Daniel Brooks
Updated October 31, 2026
The Vornado EVDC500 Evaporative Humidifier is an evaporative humidifier for rooms up to 1,000 sq ft, with dual 1 gallon tanks, an electronic humidistat and an energy saving DC motor. For more models, see our Humidifiers page.
Our Verdict
The EVDC500 is one of the best choices for large rooms with hard water. Evaporative moisture leaves no white dust, and the humidistat keeps humidity in a healthy range.
Wicks need replacing and the fan is audible on high speeds, so it is not the quietest choice for a bedroom.
Vornado EVDC500 Evaporative Humidifier
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Vornado |
| Model | EVDC500 |
| Capacity | 2 gallons (two 1 gallon tanks) |
| Coverage | Up to 1,000 sq ft |
| Output | Up to 4 gallons per day |
| Humidistat | 40 to 60 percent |
| Fan | 4 speeds, DC motor |
| Weight | 8.9 pounds |
Design
Two 1 gallon SimpleTanks are easier to carry and clean than one large tank, and the unit can deliver up to 4 gallons of moisture a day.
Vornado says its Energy Smart DC motor uses 90 percent less energy than traditional humidifiers.
Controls
The electronic humidistat holds the room between 40 and 60 percent, and a low water indicator and automatic shut-off protect the unit.
Four fan speeds let you trade output for quiet, and an LED display shows the settings.
Placement Tips
Set the humidifier on a flat, water-safe surface at least a couple of feet off the floor if you can, and aim the mist into open air rather than at walls, wood furniture, curtains or electronics. Keep it a few feet from the bed or crib so moisture spreads through the room before it reaches you.
Check the room with a hygrometer for the first few days. Most homes feel best between 40 and 60 percent relative humidity, and if windows start to fog or the room smells musty, turn the output down or let the auto mode hold a lower target.
Running Costs and Care
Running costs are low: a humidifier uses far less electricity than a space heater or air conditioner, and the main extras are water, any filters or wicks, and cleaning supplies. Warm mist models use more power than cool mist or evaporative units because they heat the water.
Empty and dry the tank when you can, and clean it at least once a week so bacteria and mold do not build up. Distilled or filtered water reduces white dust from ultrasonic units and slows scale in every type. Before storing it for summer, clean and dry every part.
How It Compares
Against the Vornado EV3, the EVDC500 has more capacity and coverage, while the EV3 adds finer speed control.
Against the DREO Smart Evaporative Humidifier, the Vornado is simpler and uses a DC motor, while the DREO adds app control and a larger single tank.
Pros and Cons
| Pros | Cons |
|---|---|
| Up to 1,000 sq ft | Wicks need replacing |
| No white dust | Fan noise on high |
| Electronic humidistat | No app |
| Energy Smart DC motor | Bulkier than ultrasonic units |
| Two easy-carry tanks | Output slows in humid rooms |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Large rooms | Light sleepers on high speed |
| Hard water areas | Smart home users |
| Energy-conscious buyers | Tiny rooms |
| Living rooms | Anyone avoiding wicks |
For more options, see our picks for the best evaporative humidifiers for large rooms and the best Vornado humidifiers.
To see how it ranks against similar models, read our best vornado humidifiers, best evaporative humidifiers for large rooms and best humidifiers for large rooms.
Final Verdict
The Vornado EVDC500 Evaporative Humidifier is an efficient, mist-free humidifier for large rooms, especially where tap water is hard. You can check the current price and details for the Vornado EVDC500 Evaporative Humidifier.
Frequently Asked Questions
How much space does the Vornado EVDC500 cover?
Up to 1,000 sq ft.
Does it leave white dust?
No, it is an evaporative humidifier.
How much water does it hold?
Two 1 gallon tanks, 2 gallons in total.
Does it have a humidistat?
Yes, it holds 40 to 60 percent.
How many fan speeds does it have?
Four.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.