What to know about Levoit Sprout Evaporative Humidifier (LEH-B381S-WNA)
Why it stands out
Why we like it
The tank is dishwasher-safe and fills from the top. The separate sensor and auto mode help avoid over-humidifying, and auto-dry helps limit damp-wick problems.
What to know
Score breakdown
How easy it is to fully disassemble, reach and dry every wet surface. Covers dishwasher-safe or boilable parts, mold-inhibiting features, and parts count. Weighted heavily by BabyGearLab (35%) and stressed by Babylist, Forbes and RTINGS.
Ability to raise and hold nursery humidity in the 40–50% range: tested output, coverage for the room size, overnight runtime per tank, and humidistat or auto-mode accuracy.
Measured or rated noise, absence of gurgles and beeps, dimmable or switch-off lights, and nursery extras like a red night light or white noise that help rather than disturb sleep.
Cool-mist or evaporative design (no burn risk), stainless or BPA-free water-contact materials, and white-dust/mineral mitigation such as demineralization filters or evaporative design. Also covers tip and leak resistance, auto shut-off, and any recalls or regulatory warnings.
Filling (top-fill vs flip-tank), controls usable in the dark, app reliability, leak-free refills, and how easy it is to move or place.
Street price plus ongoing costs (filters, cartridges), weighed against warranty length and performance.
Levoit Sprout Evaporative Humidifier (LEH-B381S-WNA) specs
Design
- Humidifier type
- Evaporative (wick) with water and air filters
Performance
- Tank capacity
- 3.8 L
- Max runtime per tank (manufacturer)
- 36 hours
- Rated room coverage
- 219 sq ft
- Built-in humidistat / auto mode
- Yes
- Mist temperature
- Cool (invisible vapor)
Sleep
- Noise (manufacturer-rated or lab-measured)
- 45 dB
- Built-in night light
- Yes
- Built-in white-noise / sound machine
- No
Ease of use
- Top-fill tank
- Yes
Running cost
- Requires replaceable filter/cartridge
- Yes
Health & materials
- Dishwasher-safe water-contact parts
- Yes
Features
- Wi-Fi app / voice control
- Yes
Health
- White dust / mineral dispersal risk (per EPA type guidance)
- Low – evaporative (EPA: not expected to disperse substantial minerals)
- Antimicrobial / UV measures
- Auto-dry fan dries wick after use
Ownership
- Wick replacement interval / cost
- Replacement wick filter $29.99 (Levoit); interval not stated
- Warranty
- 2 years
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Prices and availability may change. The retailer's price and availability at checkout govern the transaction.
| Retailer | Price | Availability | |
|---|---|---|---|
| AmazonLowest | $169.99 $189.99 | In Stock | View deal |
| Walmart |
$189.99
Last known price — verified Oct 31, 2026; may have changed |
Check at retailer | Check at retailer |
Based on 3 retailer price observations captured during the last 90 days.