PlasmaPro 400S

Name: LEVOIT PlasmaPro 400S
Brand: LEVOIT
Rating: 82 (4 reviews)

Released Feb 1, 2023 · Analysis updated Mar 31, 2026

Quietly purifies large rooms with smart features and an air quality indicator. The LEVOIT PlasmaPro 400S scores 82/100 based on 4 expert reviews in the air purifiers category. Coverage includes reviews from Consumerreports, Breathequality, Topconsumerreviews, and Versus.

Critic Score

What's this?

based on 4 expert reviews

ConsumerreportsBreathequalityTopconsumerreviewsVersus

Low confidence · only 4 reviews

Where to buy

amazon$181.97

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Pros

Quiet operation(2)
Smart features(2)

Cons

High filter cost(2)

4 Publication Reviews

Major publication

AI summary of this review

The Levoit PlasmaPro 400S-P is a floor/tabletop air purifier with filter indicator, programmable timer, auto mode, dirt sensor, and 4 speeds for 363 sq ft spaces.

Score estimated from the review text

Independent publication02/2023

Independent publicationFeb 3, 2023

AI summary of this review

The Levoit PlasmaPro 400S is essentially the Core 400S with PlasmaPro technology, offering solid performance and smart features but at a higher price point.

Score estimated from the review text

Independent publication02/2026

Independent publicationFeb 13, 2026

AI summary of this review

The LEVOIT PlasmaPro 400S Smart Air Purifier offers 3-stage filtration, smart controls, and quiet operation, with generally satisfactory performance for most everyday users.

Score estimated from the review text

Established publication

AI summary of this review

The Levoit PlasmaPro 400S is a smart air purifier with a large recommended room size of 164 m2, quiet operation at 22 dB minimum, and energy-efficient performance at 38W.

Score estimated from the review text