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Home / Home & kitchen / Air Purifiers / Levoit Core 300S
8.2 Tested Aug 24, 2026 by Team RankingRight

Levoit Core 300S (Smart) review 2026

The best-selling purifier on Amazon: small, quiet, app-controlled and cheap to run — right for a bedroom, not a living room

PriceFrom $149.99 · checked Sep 11, 2026
90% clear, high24 min
Noise on low24 dB

Is the Levoit Core 300S Worth It?

Best air purifier for bedrooms. In a bedroom the Core 300S is close to perfect: silent, smart and cheap. Its coverage number is honest — buy two before expecting one to do a big room.

Levoit Core 300S Pros & Cons

Pros
  • 24 dB on sleep mode — inaudible
  • App, auto mode and a display-off setting
  • Cheapest five-year running cost here
  • Small footprint
Cons
  • Took 24 minutes to clear our 400 sq ft room — it is a 220 sq ft unit
  • Thin carbon layer does little for smells
  • Filters every 6–8 months

Levoit Core 300S at a Glance

8.2 Editor Score
Particle removalMinutes to cut PM2.5 by 90% in our 400 sq ft room on high, and on the highest setting under 50 dB; AHAM CADR where published.
22/35
NoiseMeasured dB at 1 m on low, medium and high; sleep-mode usability.
15/15
Energy & filter costWatts on medium, replacement filter price and interval — five-year running cost.
18/20
FeaturesAir-quality sensor and auto mode, app, filter indicator, carbon layer for odours and VOCs, build.
9/10
ValuePrice per square foot of rated coverage, plus five-year running cost.
18/20
Reader ratingNo reader ratings yet — not part of the score
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Own one? Rate it:

Rubric v1: Particle removal 35 · Noise 15 · Energy & filter cost 20 · Features 10 · Value 20. Score = Σ ÷ 10, locked Sep 11, 2026. How we rank.

Where to buy — prices checked Sep 11, 2026

Amazon — $149.99

Best priceSee Price

Levoit — $149.99

Also sold atSee Price

Levoit Core 300S specifications

Rated coverage219 sq ft
CADR (smoke/dust/pollen)141 / 140 / 145
True HEPAYes (H13)
Carbon filterYes
Replacement filter30 USD
Filter life8 months
Power on medium22 W
Noise on low24 dB
Auto mode / appYes, app and auto mode

Why it scored 8.2

In a bedroom the Core 300S is close to perfect: silent, smart and cheap. Its coverage number is honest — buy two before expecting one to do a big room.

Where it loses

Particle removal in large rooms.

Still the right pick for

Bedrooms and offices.

Changelog: Sep 11 — rank 3 → 4 · all changes

Levoit Core 300S8.2 · $149.99
See Price