LEVOIT Classic 300S
Humidifiers

Classic 300S

LEVOIT

Released Aug 1, 2025 · Analysis updated Apr 6, 2026

Smart top-fill humidifier with long runtime, app control, and coverage for up to 505 sq ft. The LEVOIT Classic 300S scores 79/100 based on 2 expert reviews in the humidifiers category. Coverage includes reviews from Consumerreports and Techgearlab.

Critic Score

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79

based on 2 expert reviews

ConsumerreportsTechgearlab

Low confidence · only 2 reviews

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2 Expert Reviews

84
Major publication

The Levoit Classic 300S large room humidifier was excellent in overall performance, and is intended to humidify areas up to 505 square feet.

73
Established publication08/2025

A virtually flawless humidifier that'll run for 2+ days on a single tank

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