Vornado EVDC300 Energy Smart vs Vornado EVDC500 Energy Smart
In short: The Vornado EVDC300 Energy Smart costs $30 less; the Vornado EVDC500 Energy Smart genuinely holds a larger room (862 sq ft against 567 sq ft); the Vornado EVDC300 Energy Smart costs about $24 less a year in wicks and watts.
| Spec | Vornado EVDC300 Energy Smart | Vornado EVDC500 Energy Smart |
|---|---|---|
| Approx. price | ~$90 | ~$120 |
| Type | Evaporative | Evaporative |
| Mist | cool | cool |
| Rated output | 2.3 gal/day | 3.5 gal/day |
| Output standard | Maker's published output rate | Maker's published output rate |
| Honest room size | 567 sq ft | 862 sq ft |
| Claimed coverage | 560 sq ft | 850 sq ft |
| Claim vs physics | 0.99× | 0.99× |
| Tank size | 1 gal | 2 gal |
| Runtime at the claimed room | 11 hr | 14 hr |
| Real runtime at full output | 10 hr | 14 hr |
| Yearly running cost | ~$25 | ~$49 |
| Replaceable media | Wick, replaced through the season | Wick, replaced through the season |
| White dust risk | No | No |
| Humidistat | Yes | Yes |
| Noise on low | — | — |
| Top fill | No | No |
| Dishwasher-safe tank | No | No |
| App control | No | No |
| Power | 11 W | 13 W |
Highlighted cells are the better number in that row, and only where a direction is unambiguous — more output and more supported room, less noise, cost and price. Honest room size and runtime are computed from each maker’s own published figures; here is the calculation.
Pros and cons
Vornado EVDC300 Energy Smart
- The DC motor is a genuine running-cost difference, not a marketing feature - single-digit watts against 30 for the AC models
- Digital display and touch controls put it ahead of the EV100/EV200 on usability
- Its coverage claim is within one percent of the standard load calculation
- Same five-year guarantee as the rest of the line
- One gallon feeding 2.3 gallons a day of output is about ten hours - the shortest realistic tank life of any Vornado here
- Costs $20 more than the EV200 while holding a third less water
- Wick habit unchanged from the AC models - the motor got cheaper to run, the consumable did not
- Touch controls are less pleasant to use in the dark than physical buttons
Vornado EVDC500 Energy Smart
- Most output of any portable Vornado while still drawing barely more power than a nightlight
- Honest coverage claim in a size bracket where every competitor inflates
- Dual tanks make the daily refill manageable
- Five-year guarantee, which counts for more on a motor that runs every hour of the season
- Two wicks, so the consumable bill matches the EV200's rather than the cheaper EVDC300's
- Fourteen hours at full output, so the dual tanks buy convenience rather than a second day
- At $120 it is competing with console evaporatives that hold three times the water
- No app and no scheduling, which at $120 is a real gap next to the ultrasonics

