Levoit
Classic 300S Smart Ultrasonic Humidifier
$79.99Cheaper
Released 2022
Best Humidifiers · head-to-head
A sourced, side-by-side comparison. Classic 300S Smart Ultrasonic Humidifier is cheaper at $79.99. Every spec and price links to its source.
Levoit
$79.99Cheaper
Released 2022
Dreo
$89.99
Released 2023
On the specs we track, they're closely matched. The Classic 300S Smart Ultrasonic Humidifier is the cheaper at $79.99.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $79.99 | $89.99 |
| Brand | Levoit | Dreo |
| Released | 2022 | 2023 |
| Type | ultrasonic | ultrasonic |
| Tank capacity liters | 6 | 6 |
| Coverage (sq ft) | 505 | 550 |
| Runtime hours | 60 | 60 |
| Smart Wi-Fi | Yes | Yes |
| Top fill | Yes | Yes |
| Noise dba | 30 | 28 |
Sources — Classic 300S Smart Ultrasonic Humidifier: levoit.com (verified 2026-06-15). HM713S Smart Warm & Cool Mist Humidifier: dreo.com (verified 2026-06-15).
Where the two actually differ on the specs we track (2 of 7). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Only one whitelisted tester yielded a readable, hands-on review: Wirecutter names the Classic 300S its humidifier runner-up, calling it nearly as powerful and reliable as its Levoit LV600S top pick with a handy night-light, but flags an unintuitive icon-only interface, tricky cleaning, and reports of tank leaks. RTINGS (paywalled) and TechGearLab (site maintenance) were unreadable and discarded. (1 sourced review, 1 lab-tested.)
Praised: Nearly as powerful and reliable as Wirecutter's top-pick LV600S, and similarly avoids over-humidifying the room; Pleasant built-in night-light that is easy to turn off without stopping humidification; Same smart-home features and same two-year warranty as the top pick.
Flagged: Icon-only onboard buttons are less intuitive and harder to navigate than the top pick's labeled buttons; Reports of the tank leaking after a few months of use (Amazon reviewers and Wirecutter staffers); Harder to clean than the top pick due to the awkward water-vapor chimney and complex basin water channel.
No sourced tester review yet.