What do reviews say about noise?

TechGearLab found it somewhat loud on the higher fan speeds.

What do reviews say about filter?

TechGearLab notes a filter life of around 12 months.

What do reviews say about ozone?

It uses no ionizer, so TechGearLab notes no ozone concerns.

Home & Kitchen · Air purifiers · 32 reviews · 3 sources

Levoit Core 400S

Best for: larger rooms with smart controlMid-range

A powerful, ionizer-free smart purifier with long filter life. It gets loud on high and the app pushes ads.

Tracking since Sep 2026

Buy if

You want strong cleaning plus an app
You prefer an ionizer-free design

Skip if

You need a very quiet top speed
You dislike ads in apps

How it scores

Performance8.5

Value7.3

Noise5.8

Price

$220

You pay for: Mid-price smart purifier

Reviewed Sep 2026 · 0 new reviews since · score unchanged

What people love

Most mentioned by reviewers

Strong cleaningHandles smoke, pets, pollen

No ionizerNo ozone by-products

Long filter lifeFilter lasts about a year

What people complain about

Most mentioned by reviewers

Loud on highNoisy at top fan speeds

App adsCompanion app shows ads

Not HEPA-certifiedFilter is not certified HEPA

Reviewers disagree on

Premium smart featuresNoisier than rivals on high

Alternatives

Same price · $220

Ask about this product

Sources

AI summary of public reviews, not a recommendation.