
Levoit Cool Mist Humidifier Gray
Score: 88/100
Levoit 3L Humidifier
Score: 80/100Rankings

The Levoit Classic 300S is a smart, large-capacity humidifier designed for bedrooms and large rooms, featuring a 6-liter tank and app-based control. It offers excellent runtime and quiet operation, though the warranty terms are less specific than competitors. It is best suited for tech-savvy users who want automated humidity management and voice control.

The Levoit Dual 150 is a compact ultrasonic cool mist humidifier designed for small to medium-sized rooms up to 290 square feet. It features a 3-liter top-fill tank with an anti-leak design, offering quiet operation under 28 dB and dual functionality as both a humidifier and essential oil diffuser. It is best suited for budget-conscious users seeking reliable, quiet humidification for bedrooms and nurseries.
| Attribute | ![]() | ![]() |
|---|---|---|
6,000 mlbest | 3,000 ml | |
505 sq_ftbest | 290 sq_ft | |
60 hoursbest | 25 hours | |
| ↓ lower better | 30 dB | 28 dBbest |
| ↓ lower better | 2 kgbest | 3 kg |
| ↓ lower better | 26 watts | 25 wattsbest |
— | 2 levelsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Capacity & Runtime(3) | ||
Water Tank Capacity (ml) | 6000 ml | 3000 ml |
Room Coverage (sq_ft) | 505 sq_ft | 290 sq_ft |
Runtime (hours) | 60 hours | 25 hours |
Performance & Acoustics(1) | ||
Noise Level (dB) | 30 dB | 28 dB |
Safety & Power(1) | ||
Power Consumption (watts) | 26 watts | 25 watts |
Portability & Design(2) | ||
Product Weight (kg) | 2.0 kg | 3.0 kg |
Product Dimensions | 7.56 x 13.39 x 9.65 inches | 11.57x8.11x7.20 inches |
Technology & Maintenance(1) | ||
Humidification Method | Ultrasonic Cool Mist | Cool Mist |
Support(1) | ||
Warranty | Satisfaction Guaranteed | 2 years |
Features & Extras(3) | ||
Mist Speed Settings (levels) | levels | 2 levels |
Control Type | Smart App/Voice | Manual |
Night Light | true | false |
Connectivity(1) | ||
Smart Connectivity | WiFi/Voice | None |

Products in the top-left offer the best value (high score, low price).

Professional reviewers consistently praise the Levoit Dual 150 as a budget-friendly humidifier offering reliable performance. They highlight its quiet operation, easy top-fill refilling mechanism, and sufficient runtime for full-night use without requiring mid-sleep refills. Reviewers note that it delivers steady mist output to maintain air hydration overnight while fitting discreetly into various room aesthetics at an accessible price point.
Everyday users frequently praise the Levoit Dual 150 for its quiet operation, which does not disturb sleep, and the top-fill convenience that eliminates tank detachment hassles. The eight-hour runtime on a full tank is commonly cited as meeting expectations for overnight bedroom use. Users also value the easy maintenance and simple design, though some express dissatisfaction with the limited coverage area in larger rooms.
