Levoit
Classic 300S Smart Ultrasonic Humidifier
$79.99Cheaper
Released 2022
Best Humidifiers · head-to-head
Classic 300S Smart Ultrasonic Humidifier vs Evap40 Evaporative 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.
Vornado
Evap40 Evaporative Humidifier
$149.99
Which is better: the Classic 300S Smart Ultrasonic Humidifier or Evap40 Evaporative 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 | Evap40 Evaporative Humidifier |
|---|---|---|
| US price | $79.99 | $149.99 |
| Brand | Levoit | Vornado |
| Released | 2022 | — |
| Type | ultrasonic | evaporative |
| Tank capacity liters | 6 | 15.14 |
| Coverage (sq ft) | 505 | 1000 |
| Runtime hours | 60 | 24 |
| Smart Wi-Fi | Yes | No |
| Top fill | Yes | No |
| Noise dba | 30 | — |
Sources — Classic 300S Smart Ultrasonic Humidifier: levoit.com (verified 2026-06-15). Evap40 Evaporative Humidifier: vornado.com (verified 2026-06-15).
What's the difference between the Classic 300S Smart Ultrasonic Humidifier and Evap40 Evaporative Humidifier?
Where the two actually differ on the specs we track (6 of 7). Matching specs are omitted.
- Type: Classic 300S Smart Ultrasonic Humidifier ultrasonic vs Evap40 Evaporative Humidifier evaporative
- Tank capacity liters: Classic 300S Smart Ultrasonic Humidifier 6 vs Evap40 Evaporative Humidifier 15.14
- Coverage (sq ft): Classic 300S Smart Ultrasonic Humidifier 505 vs Evap40 Evaporative Humidifier 1000
- Runtime hours: Classic 300S Smart Ultrasonic Humidifier 60 vs Evap40 Evaporative Humidifier 24
- Smart Wi-Fi: Classic 300S Smart Ultrasonic Humidifier true vs Evap40 Evaporative Humidifier false
- Top fill: Classic 300S Smart Ultrasonic Humidifier true vs Evap40 Evaporative Humidifier false
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.
Evap40 Evaporative Humidifier
Only one whitelisted tester (Reviewed/USA Today) covers the exact Vornado Evap40, and it curated the pick from user reviews and product specifications rather than hands-on lab-testing this model, so no measured data exists for it. Reviewed praises the long runtime (fewer refills), quiet operation, and spill/leak-proof build, but flags the high price. Treat as light, single-source evidence. (1 sourced review.)
Praised: Long-lasting output requires fewer refills; Very quiet when operating; Spill- and leak-proof design.
Flagged: Expensive.