Head to head

Levoit Core 600S Smart True HEPA vs Levoit Core 300S Smart True HEPA Air Purifier

They split the 4 rankable specs evenly, so cost decides it: Levoit Core 300S Smart True HEPA Air Purifier costs $150 less.

Catalog as of September 1, 2026

Why, in numbers

CADR: Levoit Core 600S Smart True HEPA lists 410 CFM (Smoke), 400 CFM (Dust), 420 CFM (Pollen) (Levoit sheet, 2026-09-02); Levoit Core 300S Smart True HEPA Air Purifier lists 141 CFM / 240 m³/h (Smoke), 140 CFM (Dust), 145 CFM (Pollen) (Levoit sheet, 2026-09-02).
Coverage area: Levoit Core 600S Smart True HEPA lists 1,588 sq ft (2 air changes/hr) / 635 sq ft (5 air changes/hr) (Levoit sheet, 2026-09-02); Levoit Core 300S Smart True HEPA Air Purifier lists 219 sq ft (5 air changes/hr) / 1,095 sq ft (1 air change/hr) (Levoit sheet, 2026-09-02).
Room size: Levoit Core 600S Smart True HEPA lists Extra-large spaces, open-concept homes, basements (Levoit sheet, 2026-09-02); Levoit Core 300S Smart True HEPA Air Purifier lists Bedrooms, nurseries, home offices up to 219 sq ft (5 ACH) / up to 1,095 sq ft (1 ACH) (Levoit sheet, 2026-09-02).
Filter types: Levoit Core 600S Smart True HEPA lists 3-Stage True HEPA (Pre-filter + H13 True HEPA + High-efficiency Custom Carbon) (Levoit sheet, 2026-09-02); Levoit Core 300S Smart True HEPA Air Purifier lists 3-Stage filtration: Pre-filter + H13 True HEPA + High-Efficiency Activated Carbon filter (Levoit sheet, 2026-09-02).
Filter life: Levoit Core 600S Smart True HEPA lists 6–12 months depending on air quality (Levoit sheet, 2026-09-02); Levoit Core 300S Smart True HEPA Air Purifier lists 6 to 8 months (Levoit sheet, 2026-09-02).

Manufacturer list price, not a live offer. Confirm current pricing before you buy.

Levoit Core 600S Smart True HEPA

$2992 spec wins

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Levoit Core 300S Smart True HEPA Air Purifier

$1492 spec wins

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Generational Upgrade Analysis

Generational Comparison

Levoit sibling models compared across generations.

Our recommendation: Compare the spec differences below to see if the price premium justifies the newer model's additions.

Buying for

Every rankable spec counts once. Pick a lens to score only what matters for your air purifier.

Straight answer

Overall: 2 to 2

Tied overall. Levoit Core 300S Smart True HEPA Air Purifier is cheaper.

The 4 rankable overall specs split 2 to 2.
Saves $150 at list price.

Check first: the Levoit Core 300S Smart True HEPA Air Purifier has under 1,000 sq ft coverage.

2 Levoit Core 600S Smart True HEPA4 rankable of 11 specsLevoit Core 300S Smart True HEPA Air Purifier 2

Deal-breakers

tick what would make you walk away

Under 1,000 sq ft coveragerow
Undersized for an open-plan living area.
Clear:Levoit Core 600S Smart True HEPA · 1,588 sq ftTrips:Levoit Core 300S Smart True HEPA Air Purifier · 219 sq ft

At a glance

The handful of numbers that decide most purchases in this category.

2 of 2 differ

CADR

Core 600S Smart True HEPA

410 CFM (Smoke), 400 CFM (Dust), 420 CFM (Pollen)

Core 300S Smart True HEPA Air Purifier

141 CFM / 240 m³/h (Smoke), 140 CFM (Dust), 145 CFM (Pollen)

Coverage area

Core 600S Smart True HEPA

1,588 sq ft (2 air changes/hr) / 635 sq ft (5 air changes/hr)

Core 300S Smart True HEPA Air Purifier

219 sq ft (5 air changes/hr) / 1,095 sq ft (1 air change/hr)

True 3-Year Cost of Ownership (TCO)

Upfront price + 3 years of consumables, fees & essential add-ons

Levoit Core 600S Smart True HEPA

Upfront list price$299

3-Yr High-capacity HEPA filter (Every 12 months (~$65/yr))+$195

3-Year Estimated Total$494

Levoit Core 300S Smart True HEPA Air Purifier

Upfront list price$149

3-Yr Replacement filter (Every 6–8 months (~$26/yr))+$78

3-Year Estimated Total$227

Room Placement & Bedroom Noise Check

Physical clearance required for airflow, wall placement, and bedroom noise levels.

Ergonomic & Spatial Check

Wall Clearance Required

Cylindrical 360° filters cannot sit flush against walls without choking intake.

Core 600S Smart True HEPA

Requires 12 in perimeter airflow space

Core 300S Smart True HEPA Air Purifier

360° intake requires 15 in perimeter clearance from walls

Nighttime Sleep Mode Noise

Levels below 25 dB are virtually silent for light sleepers.

Core 600S Smart True HEPA

Standard sleep speed

Core 300S Smart True HEPA Air Purifier

22 dB whisper mode (practically inaudible on nightstand)

Unit Footprint & Dimensions

Core 600S Smart True HEPA

Standard room purifier footprint

Core 300S Smart True HEPA Air Purifier

Compact cylinder (8.7 × 8.7 × 14.2 in; 5.9 lb)

The 90-Day Owner Regret Check

Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.

Post-Purchase Truths

Core 600S Smart True HEPA: What to watch for

Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Activated carbon and HEPA media gradually saturate, needing replacement once or twice yearly depending on air pollution and pet shedding.

Core 300S Smart True HEPA Air Purifier: What to watch for

Hardware Quirk
No true HEPA H13 rating on recent replacement filters.
Due to US regulatory naming updates, Levoit adjusted terminology from "True HEPA" to "HEPASmart" on several retail filter packs.
Maintenance
Filter check light does not measure real dirt; it operates on a fixed timer.
The filter replacement alert triggers every 6 months regardless of whether your room was smoky or pristine, requiring manual reset.

Levoit Core 600S Smart True HEPA$2992 wins

Levoit Core 300S Smart True HEPA Air Purifier$1492 wins

Performance Filters Usability & Smart Design & Ownership

11 of 11 attributes differ. Identical rows are dimmed.

Performance

leads 2-0

Performance specifications. Middle column is Levoit Core 600S Smart True HEPA, right column is Levoit Core 300S Smart True HEPA Air Purifier.
CADR	410 CFM (Smoke), 400 CFM (Dust), 420 CFM (Pollen) (wins this row: higher)	141 CFM / 240 m³/h (Smoke), 140 CFM (Dust), 145 CFM (Pollen)
Room size	Extra-large spaces, open-concept homes, basements	Bedrooms, nurseries, home offices up to 219 sq ft (5 ACH) / up to 1,095 sq ft (1 ACH)
Coverage area	1,588 sq ft (2 air changes/hr) / 635 sq ft (5 air changes/hr) (wins this row: higher)	219 sq ft (5 air changes/hr) / 1,095 sq ft (1 air change/hr)

Filters

2 differences

Filters specifications. Middle column is Levoit Core 600S Smart True HEPA, right column is Levoit Core 300S Smart True HEPA Air Purifier.
Filter types	3-Stage True HEPA (Pre-filter + H13 True HEPA + High-efficiency Custom Carbon)	3-Stage filtration: Pre-filter + H13 True HEPA + High-Efficiency Activated Carbon filter
Filter life	6–12 months depending on air quality	6 to 8 months

Usability & Smart

leads 1-0

Usability & Smart specifications. Middle column is Levoit Core 600S Smart True HEPA, right column is Levoit Core 300S Smart True HEPA Air Purifier.
Noise levels	26 dB (QuietKeap Sleep mode) – 55 dB (High)	22 dB (Sleep mode) – 48 dB (High speed) (wins this row: lower)
Energy consumption	49 W max (Energy Star verified)	23 W max power (Energy Star Certified)
Smart features	VeSync App, Alexa & Google Assistant voice integration, custom schedules	VeSync App (iOS/Android), voice control via Amazon Alexa and Google Assistant
Air quality sensors	AirSight Plus laser dust sensor (PM2.5 real-time numerical display)	AirSight Plus Laser Dust Sensor (real-time PM2.5 with 4-color air quality ring)

Design & Ownership

leads 1-0

Design & Ownership specifications. Middle column is Levoit Core 600S Smart True HEPA, right column is Levoit Core 300S Smart True HEPA Air Purifier.
Weight	13.7 lb (6.2 kg)	5.95 lb (2.7 kg) (wins this row: lower)
Warranty	2 years	2 years limited warranty (with registration)

Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.

Levoit Core 600S Smart True HEPA source Levoit Core 300S Smart True HEPA Air Purifier source

Which one should you buy

Pick this one if

Levoit Core 600S Smart True HEPA

High-efficiency smart vortex air purifier with VortexAir 3.0 technology cleaning up to 1,588 sq ft in 30 mins.

Exceptional CADR performance at an unbeatable sub-$300 price
Ultra-quiet 26 dB Sleep mode with display light shutoff
Feature-rich VeSync mobile app with voice assistant control

What you give up

Activated carbon filter layer is thinner for heavy smoke odors
Large cylindrical form factor requires space

Full Levoit Core 600S Smart True HEPA specs →

Pick this one if

Levoit Core 300S Smart True HEPA Air Purifier

Compact smart air purifier with 3-stage True HEPA H13 filtration, VortexAir technology, and VeSync app smart control.

Whisper-quiet 22dB Sleep Mode
Compact footprint ideal for bedrooms and home offices
Full smart app control and Alexa/Google voice integration

What you give up

Designed for smaller to medium rooms (up to 219 sq ft for 5 ACH)
Laser dust sensor only measures PM2.5 (no VOC / gas sensor)

Full Levoit Core 300S Smart True HEPA Air Purifier specs →

Best for each use

Bedrooms

Quiet nights: low-speed noise, sleep mode, schedules from your phone

For bedrooms, buy the Levoit Core 300S Smart True HEPA Air Purifier.

Leads 2 of 2 rankable bedrooms specs.
Noise levels: 22 dB vs 26 dB
Weight: 5.95 lb vs 13.7 lb
It is also $150 cheaper.

Big rooms & allergies

Open-plan rooms or allergies: CADR, coverage, filter grade

For big rooms & allergies, buy the Levoit Core 600S Smart True HEPA.

Leads 2 of 2 rankable big rooms & allergies specs.
CADR: 410 CFM vs 141 CFM / 240 m³/h
Coverage area: 1,588 sq ft vs 219 sq ft
Levoit Core 300S Smart True HEPA Air Purifier is $150 cheaper. Pay the difference only if cadr matters to you.

Low running cost

Cheap to own: filter life, power draw, warranty

Too close to call on low running cost from the spec sheets.

Filter life: 6–12 months depending on air quality vs 6 to 8 months
Energy consumption: 49 W max vs 23 W max power

Every answer above is scored from published figures. A lens uses only the rows that matter for that use, including marked rows that are not on the official sheet. Switch lenses interactively in the panel above.

Done deciding?

Open the full standalone spec sheet for either device.

Levoit Core 600S Smart True HEPA spec sheet Levoit Core 300S Smart True HEPA Air Purifier spec sheet

Manufacturer pages: Levoit Core 600S Smart True HEPA ↗ · Levoit Core 300S Smart True HEPA Air Purifier ↗

Common questions

Which is cheaper, the Levoit Core 600S Smart True HEPA or the Levoit Core 300S Smart True HEPA Air Purifier?

Levoit Core 300S Smart True HEPA Air Purifier costs $150 less at list price.

What is the biggest catch with the Levoit Core 600S Smart True HEPA or Levoit Core 300S Smart True HEPA Air Purifier?

Levoit Core 300S Smart True HEPA Air Purifier has this deal-breaker: under 1,000 sq ft coverage. Undersized for an open-plan living area.

Which is better for bedrooms, the Levoit Core 600S Smart True HEPA or the Levoit Core 300S Smart True HEPA Air Purifier?

For bedrooms, buy the Levoit Core 300S Smart True HEPA Air Purifier. Leads 2 of 2 rankable bedrooms specs. Noise levels: 22 dB vs 26 dB

What cannot be compared from spec sheets?

Of the 11 specs tracked here, 7 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.

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