Vornado Evap40 Evaporative Humidifier 4 Gal
- Up to 1,000 sq ft coverage
- 4 gallon dual tank capacity
- Up to 4 gallons of moisture per day
- 3 speeds, adjustable humidistat
- Dual wicking filters, no visible mist
- 5-year replacement support, US voltage only
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large room evaporative humidifier that adds moisture without visible mist or white dust. The wicking filters need periodic replacement, and noise and power figures are not listed.
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ASIN: B00O0WOO74Model: Evap40Category: Humidifiers
Overview
Not an ultrasonic mister, the Vornado unit is an evaporative humidifier that pulls dry air through wet wicking filters with a fan. Moist air leaves with no droplets, and a built in humidistat controls the level.
Evaporative design avoids the mineral dust and wet surfaces of ultrasonic units, and capacity covers large rooms. The fan makes sound, and wicks are a recurring consumable.
Who it's for
Large bedrooms, living rooms and homes with hard water suit evaporative humidification. People who want silent operation or no filter replacements should look at other types.
Pros and cons
- Large room coverage
- No visible mist or wet surfaces
- Three fan speeds
- Leak-proof removable tanks
- Wicking filters must be replaced
- Fan noise not listed
- US voltage only
Performance notes
Fan driven airflow through wet wicks evaporates water, so output rises in dry air and falls as the room approaches the set humidity. That self limiting effect reduces over humidifying. Wick condition governs output over time.
Specifications
| Brand | Vornado |
|---|---|
| Model | Evap40 |
| Capacity & performance | |
| Capacity | 4 gallons, dual tank |
| Power & efficiency | |
| Voltage | US voltage only |
| Warranty & support | |
| Warranty Description | Replacement for up to 5 years |
| Other details | |
| Floor Area | 1,000 square feet |
| Operation Mode | Evaporative |
| Filter Type | Dual wicking filters |
| Control Type | Adjustable humidistat, 3 speed settings |
Frequently asked questions
What comes in the box with the Vornado Evap40?
The listing describes the humidifier with its dual tank and dual wicking filters. It does not itemize spare filters.
Does the Vornado Evap40 leave white dust?
It is evaporative with no visible mist or water droplets, so it does not spray mineral dust the way ultrasonic units can.
How much moisture does the Vornado Evap40 add?
Up to 4 gallons per day, covering rooms up to 1,000 sq ft.
Can the Vornado Evap40 be used outside the US?
It is built, certified and warrantied for US voltage only.