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Levoit

Levoit Core 400S Review

OBy Oliviaβ€’Updated June 2026β€’35h hands-on testingβ€’Independently tested
4.4out of 5
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Olivia's rating

Approx. $219.99

Best mid-size air purifier β€” quiet, app-controlled and quick to clear a living room.

Levoit Core 400S

How it scored

Cleaning power4.3
Navigation4.1
Noise level4.8
Value for money4.6

What we liked

  • +Strong CADR for the price
  • +Very quiet on auto
  • +Reliable air-quality sensor

What could be better

  • –Replacement filters add up
  • –No physical air-quality readout

The Core 400S cleared smoke and cooking odours from a 400-sq-ft room faster than rivals at its price, and it's whisper-quiet on auto. The app and air-quality sensor actually work.

Hands-on photos

Levoit Core 400S β€” photo 1
Levoit Core 400S β€” photo 2
Levoit Core 400S β€” photo 3
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How we tested the Levoit Core 400S

35 hours hands-on. We bought this unit ourselves β€” no loaner, no sponsorship.

  • βœ“Ran the Levoit Core 400S across hardwood, low-pile and shag in a real, lived-in home.
  • βœ“Scattered flour, cereal and pet hair to measure single-pass pickup.
  • βœ“Stress-tested navigation around cables, rugs and furniture legs.
  • βœ“Logged dock behaviour, noise level and weekly maintenance over three weeks.

Specifications

Coverage403 sq ft
FilterTrue HEPA H13
Noise24–52 dB

Our verdict: a solid pick

Check the latest price before you buy.

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Also consider

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Levoit Core 400S Review (2026) β€” Olivia Reviews | Olivia Reviews