Best Humidifiers · head-to-head

Classic 300S Smart Ultrasonic Humidifier vs HM713S Smart Warm & Cool Mist Humidifier

A sourced, side-by-side comparison. Classic 300S Smart Ultrasonic Humidifier is cheaper at $79.99. Every spec and price links to its source.

Which is better: the Classic 300S Smart Ultrasonic Humidifier or HM713S Smart Warm & Cool Mist Humidifier?

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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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Classic 300S Smart Ultrasonic Humidifier HM713S Smart Warm & Cool Mist Humidifier
US price $79.99 $89.99
BrandLevoitDreo
Released20222023
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).

What's the difference between the Classic 300S Smart Ultrasonic Humidifier and HM713S Smart Warm & Cool Mist Humidifier?

Where the two actually differ on the specs we track (2 of 7). Matching specs are omitted.

  • Coverage (sq ft): Classic 300S Smart Ultrasonic Humidifier 505 vs HM713S Smart Warm & Cool Mist Humidifier 550
  • Noise dba: Classic 300S Smart Ultrasonic Humidifier 30 vs HM713S Smart Warm & Cool Mist Humidifier 28

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Classic 300S Smart Ultrasonic Humidifier

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.

HM713S Smart Warm & Cool Mist Humidifier

No sourced tester review yet.

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