- Tank Capacity
- 1.7 liters
- Room Coverage
- Manufacturer-rated up to about 250 sq ft
- Runtime
- Up to 25 hours on low, up to 12 hours on high per fill
- Filter type
- Filter-free ultrasonic design, no filters to replace
- Controls
- 2 mist speed settings, 360-degree adjustable mist nozzle, single-setting night light
- Extras
- Auto shut-off when the tank is low or removed, includes AC adapter and cleaning brush
- Warranty
- 5-year manufacturer warranty
Pure Enrichment
Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier
A compact, budget ultrasonic humidifier that has become one of the most reviewed bedroom humidifiers on the market, built for small to medium rooms with a simple two-speed design.
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All prices
| Store | Price | Checked | |
|---|---|---|---|
| Target Best price | $39.99 | ✓ AUG 27 | Go to store |
| Pure Enrichment | $39.99 | ✓ AUG 30 | Go to store |
Prices were checked on the dates shown and can change at any time. The store page is always authoritative. Shipping and taxes are not included.
| 2026-08-30 | Pure Enrichment | $39.99 |
| 2026-08-27 | Pure Enrichment | $39.99 |
| 2026-08-27 | Target | $39.99 |
| 2026-08-26 | Pure Enrichment | $39.99 |
| 2026-08-26 | Target | $39.99 |
Each line is the price we verified on that date.
Our verdict
Where it wins
- Under $40 with a 5-year warranty, an unusually long coverage period for a budget humidifier
- Whisper-quiet ultrasonic operation is well suited to bedroom or nursery use
- 360-degree nozzle lets you aim mist output rather than it firing in one fixed direction
- One of the most-reviewed humidifiers at major retailers, giving a large base of real owner feedback to check against
Where it loses
- 1.7-liter tank and 250 sq ft rating are meant for smaller rooms, not open-plan bedrooms or larger spaces
- Narrow tank opening makes the inside harder to reach for cleaning, and owner reviews flag mold or mildew risk if it is not cleaned regularly
- Only two mist speeds and one night-light setting, fewer adjustment options than pricier smart humidifiers
The MistAire is the humidifier a lot of people already own: cheap, quiet, filter-free, and backed by a long warranty for the price. It covers a bedroom-sized room well but is not built for anything larger, and its narrow tank neck means it needs more deliberate cleaning attention than wide-mouth designs to avoid mold buildup.
Also in humidifiers
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A budget-friendly 6L smart humidifier with precise humidity tracking.
Honeywell HEV620 Top Fill Tower Humidifier
A large-room evaporative tower humidifier from Honeywell with a removable top-fill tank and a digital humidistat, aimed at bedrooms that need more coverage than a compact ultrasonic unit provides.
Levoit Classic 300S
A large-tank ultrasonic humidifier built for quiet, hands-off overnight use.
More on the Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier
Common questions
How big a room does it cover?
Pure Enrichment rates it for rooms up to about 250 sq ft, so a bedroom or small office rather than an open living area.
Does it need filters?
No, it is a filter-free ultrasonic humidifier. It can still leave mineral dust on surfaces with hard tap water; distilled water reduces this.
How loud is it?
Pure Enrichment markets it as whisper-quiet, and it uses ultrasonic vibration rather than a fan, which owner reviews generally describe as quiet enough for light sleepers.
Prices last verified Aug 27, 2026.