#1Levoit Core 400S

Product Review · Air Purifiers · #1 Ranked

Levoit Core 400S

Best-selling smart mid-size, 24,000 ratings · Reviewed by Katie · amazon.com live, Sept 9 2026

85
Strong Contender badge
Strong Contender
Rank #1 of 10 · Air Purifiers
$189.99
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The verdict

Why it scored a 85

At $189.99 the Levoit Core 400S is the mid-size smart True HEPA purifier with 24,800 Amazon ratings at 4.7 stars. Reliability leads at 96 and Satisfaction at 94, and Value holds at 88 on AHAM-verified CADR of 231–259 CFM, a laser PM2.5 sensor with auto mode, a 24 dB sleep mode and roughly $50 replacement filters. Quality sits at 76: the common nit is the bright display ring at night, and the 2-year Levoit warranty keeps Warranty at 66. It is for someone who wants a proven, app-connected purifier for a living room or large bedroom without stepping up to Coway or Alen prices.

Key specs

What you're getting

  • AHAM Verifide CADR 231 smoke / 240 dust / 259 pollen CFM
  • Cleans up to 1,733 sq ft in one hour
  • 3-stage filter: pre-filter, H13 True HEPA, activated carbon; ~$50 replacement
  • PM2.5 laser sensor with auto mode and color air-quality ring
  • 24 dB sleep mode; display ring is bright at night
  • VeSync app, Alexa and Google; no subscription
  • 14.1 lb; AHAM Verifide, Energy Star, CARB certified
  • 2-year Levoit limited warranty

ViperScore breakdown

FactorScoreWeightPoints
Value88×25%22.0
Quality76×20%15.2
Features84×15%12.6
Reliability96×15%14.4
Satisfaction94×15%14.1
Warranty66×10%6.6
Weighted total85

At a glance

  • AHAM CADR 231 smoke / 240 dust / 259 pollen CFM
  • H13 True HEPA + carbon filter, ~$50 per replacement
  • PM2.5 laser sensor, auto mode; 24 dB sleep mode
  • Price$189.99
  • TierBest-selling smart mid-size, 24,000 ratings
  • Category rank#1 of 10
Katie
Katie
Reviewed by