Head to head

Levoit Core 300S Smart True HEPA Air Purifier vs Honeywell HPA300 HEPA Air Purifier

Honeywell HPA300 HEPA Air Purifier leads 3 to 2 on the 5 rankable specs, but Levoit Core 300S Smart True HEPA Air Purifier costs $100 less.

Catalog as of September 1, 2026

Why, in numbers

CADR: 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); Honeywell HPA300 HEPA Air Purifier lists 300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) (Honeywell sheet, 2026-09-02).
Coverage area: 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); Honeywell HPA300 HEPA Air Purifier lists 465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr) (Honeywell sheet, 2026-09-02).
Room size: 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); Honeywell HPA300 HEPA Air Purifier lists Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH) (Honeywell sheet, 2026-09-02).
Filter types: 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); Honeywell HPA300 HEPA Air Purifier lists Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters (Honeywell sheet, 2026-09-02).
Filter life: Levoit Core 300S Smart True HEPA Air Purifier lists 6 to 8 months (Levoit sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists 3 months (Pre-filter) / 12 months (True HEPA filters) (Honeywell sheet, 2026-09-02).

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

Levoit Core 300S Smart True HEPA Air Purifier

$1492 spec wins

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Honeywell HPA300 HEPA Air Purifier

$2493 spec wins

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Buying for

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

Straight answer

Overall: 2 to 3

Buy the Honeywell HPA300 HEPA Air Purifier.

Leads 3 of 5 rankable overall specs; Levoit Core 300S Smart True HEPA Air Purifier takes 2.
CADR: 300 CFM vs 141 CFM / 240 m³/h
Coverage area: 465 sq ft vs 219 sq ft
Levoit Core 300S Smart True HEPA Air Purifier is $100 cheaper. Pay the difference only if cadr matters to you.

Check first: the Honeywell HPA300 HEPA Air Purifier has over 55 dB on high. Tick them under deal-breakers if that rules it out.

2 Levoit Core 300S Smart True HEPA Air Purifier5 rankable of 11 specsHoneywell HPA300 HEPA Air Purifier 3

Deal-breakers

tick what would make you walk away

Over 55 dB on highrow
Louder than normal conversation at full speed.
Clear:Levoit Core 300S Smart True HEPA Air Purifier · 22 dB (Sleep mode) – 48 dB (High speed)Trips:Honeywell HPA300 HEPA Air Purifier · 38 dB (Low) – 58 dB (Turbo)
Under 1,000 sq ft coveragerow
Undersized for an open-plan living area.
Trips:Levoit Core 300S Smart True HEPA Air Purifier · 219 sq ftTrips:Honeywell HPA300 HEPA Air Purifier · 465 sq ft

At a glance

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

2 of 2 differ

CADR

Levoit

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

Honeywell

300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen)

Coverage area

Levoit

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

Honeywell

465 sq ft (4.8 air changes/hr) / 2,250 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 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

Honeywell HPA300 HEPA Air Purifier

Upfront list price$249

3-Yr 3x HRF-R3 HEPA + 4x Pre-filters (Annual full filter set (~$65/yr))+$195

3-Year Estimated Total$444

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.

Levoit

360° intake requires 15 in perimeter clearance from walls

Honeywell

Front grille intake: can back up close to baseboards

Nighttime Sleep Mode Noise

Levels below 25 dB are virtually silent for light sleepers.

Levoit

22 dB whisper mode (practically inaudible on nightstand)

Honeywell

30 dB lowest fan speed (noticeable background white noise)

Unit Footprint & Dimensions

Levoit

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

Honeywell

Large commercial-grade shell (20.8 × 22.3 × 10.8 in; 17.0 lb)

The 90-Day Owner Regret Check

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

Post-Purchase Truths

Levoit: 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.

Honeywell: 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.

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

Honeywell HPA300 HEPA Air Purifier$2493 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 300S Smart True HEPA Air Purifier, right column is Honeywell HPA300 HEPA Air Purifier.
CADR	141 CFM / 240 m³/h (Smoke), 140 CFM (Dust), 145 CFM (Pollen)	300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) (wins this row: higher)
Room size	Bedrooms, nurseries, home offices up to 219 sq ft (5 ACH) / up to 1,095 sq ft (1 ACH)	Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH)
Coverage area	219 sq ft (5 air changes/hr) / 1,095 sq ft (1 air change/hr)	465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr) (wins this row: higher)

Filters

2 differences

Filters specifications. Middle column is Levoit Core 300S Smart True HEPA Air Purifier, right column is Honeywell HPA300 HEPA Air Purifier.
Filter types	3-Stage filtration: Pre-filter + H13 True HEPA + High-Efficiency Activated Carbon filter	Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters
Filter life	6 to 8 months	3 months (Pre-filter) / 12 months (True HEPA filters)

Usability & Smart

leads 1-0

Usability & Smart specifications. Middle column is Levoit Core 300S Smart True HEPA Air Purifier, right column is Honeywell HPA300 HEPA Air Purifier.
Noise levels	22 dB (Sleep mode) – 48 dB (High speed) (wins this row: lower)	38 dB (Low) – 58 dB (Turbo)
Energy consumption	23 W max power (Energy Star Certified)	130 W max power consumption
Smart features	VeSync App (iOS/Android), voice control via Amazon Alexa and Google Assistant	No (manual touch controls with 2/4/8 hr auto-off timer)
Air quality sensors	AirSight Plus Laser Dust Sensor (real-time PM2.5 with 4-color air quality ring)	No automated air quality sensors (filter replacement indicators)

Design & Ownership

2 differences

Design & Ownership specifications. Middle column is Levoit Core 300S Smart True HEPA Air Purifier, right column is Honeywell HPA300 HEPA Air Purifier.
Weight	5.95 lb (2.7 kg) (wins this row: lower)	17.0 lb (7.7 kg)
Warranty	2 years limited warranty (with registration)	5 years manufacturer limited warranty (wins this row: higher)

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

Levoit Core 300S Smart True HEPA Air Purifier source Honeywell HPA300 HEPA Air Purifier source

Which one should you buy

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 →

Pick this one if

Honeywell HPA300 HEPA Air Purifier

Extra-large room True HEPA air purifier with Turbo Clean mode, dual-stage filtration, and AHAM Verifide CADR ratings for large rooms.

Powerful high-volume CADR (300+ CFM) for large rooms up to 465 sq ft
Certified True HEPA captures 99.97% of airborne particles
Durable workhorse build with touch-button controls

What you give up

High power consumption (up to 130W on Turbo)
No Wi-Fi app or smart automated air quality sensors

Full Honeywell HPA300 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 38 dB
Weight: 5.95 lb vs 17.0 lb
It is also $100 cheaper.

Big rooms & allergies

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

For big rooms & allergies, buy the Honeywell HPA300 HEPA Air Purifier.

Leads 2 of 2 rankable big rooms & allergies specs.
CADR: 300 CFM vs 141 CFM / 240 m³/h
Coverage area: 465 sq ft vs 219 sq ft
Levoit Core 300S Smart True HEPA Air Purifier is $100 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. Only warranty is rankable here.

Filter life: 6 to 8 months vs 3 months
Energy consumption: 23 W max power vs 130 W max power consumption

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 300S Smart True HEPA Air Purifier spec sheet Honeywell HPA300 HEPA Air Purifier spec sheet

Manufacturer pages: Levoit Core 300S Smart True HEPA Air Purifier ↗ · Honeywell HPA300 HEPA Air Purifier ↗

Common questions

Which is cheaper, the Levoit Core 300S Smart True HEPA Air Purifier or the Honeywell HPA300 HEPA Air Purifier?

Levoit Core 300S Smart True HEPA Air Purifier costs $100 less at list price.

What is the biggest catch with the Levoit Core 300S Smart True HEPA Air Purifier or Honeywell HPA300 HEPA Air Purifier?

Honeywell HPA300 HEPA Air Purifier has this deal-breaker: over 55 dB on high. Louder than normal conversation at full speed.

Which is better for bedrooms, the Levoit Core 300S Smart True HEPA Air Purifier or the Honeywell HPA300 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 38 dB

What cannot be compared from spec sheets?

Of the 11 specs tracked here, 6 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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