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Levoit Core 400S vs Honeywell HPA300 HEPA Air Purifier

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What matters most to you?

Start with all rankable specifications, or focus on a particular use.

Your starting point

Tied overall. Levoit Core 400S is cheaper.

  • The 6 rankable overall specs split 3 to 3.
  • Saves $30 at list price.
How we reached this

We compare the published specifications relevant to your priority. Each rankable specification counts once; your selected requirements can rule a product out. This is a guide to the numbers, not a laboratory performance score.

The trade-off to know

Levoit Core 400S: Coverage is sized for medium bedrooms and living rooms (under 1,000 sq ft)

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What would rule one out?

Select the requirements you can’t compromise on.

Side by side

The differences, in detail.

Start with the key specs, then explore as much as you need.

Levoit Core 400S versus Honeywell HPA300 HEPA Air Purifier, 5 specifications
What you’re comparingLevoit Core 400SHoneywell HPA300 HEPA Air Purifier
CADRPerformance260 CFM / 442 m³/h (Smoke), 260 CFM (Dust), 260 CFM (Pollen)300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen)
Room sizePerformanceBedrooms, apartments, mid-size living spacesExtra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH)
Coverage areaPerformance403 sq ft (5 air changes/hr) / 990 sq ft (2 air changes/hr)465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr)
Filter typesFilters3-Stage: Nylon Pre-filter + H13 True HEPA + High-Efficiency Activated CarbonType A Activated Carbon Pre-filter + 3× Type R True HEPA filters
Filter lifeFilters6–12 months3 months (Pre-filter) / 12 months (True HEPA filters)

Showing 5 of 11 specifications. Missing values stay unlisted. About the sources

Both sides of the decision

What you gain. What you give up.

Levoit Core 400S

Reasons to choose it

  • Whisper-quiet 24 dB sleep mode with completely dimmable light display
  • AirSight Plus laser sensor provides real-time PM2.5 numerical readings
  • VeSync smartphone app with scheduling, filter life tracking, and voice control

Worth considering

  • Coverage is sized for medium bedrooms and living rooms (under 1,000 sq ft)
  • Activated carbon layer is a coated sheet rather than heavy pellet bed

Honeywell HPA300 HEPA Air Purifier

Reasons to choose it

  • 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

Worth considering

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

Beyond the spec sheet

Living with your choice.

Explore the ownership details available for this pair.

What three years could cost

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

Levoit Core 400S

Upfront list price$219
3-Yr H13 True HEPA filter (Every 12 months (~$45/yr))+$135
3-Year Estimated Total$354

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.

Size & fit

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

24 dB quiet sleep mode

Honeywell

30 dB lowest fan speed (noticeable background white noise)

Unit Footprint & Dimensions

Levoit

Mid-sized cylinder (10.8 × 10.8 × 20.5 in; 11.0 lb)

Honeywell

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

Everyday ownership notes

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

Before you decide

Levoit: 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.

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.

Know what’s behind the comparison

Published specs. Visible sources.

Clinchmark compares manufacturer specifications and other published information. We have not independently lab-tested these products. Editorial assessments and unknown values are identified in the specification details.

Catalog snapshot: September 1, 2026. Prices, availability, and provider terms can change.

Still weighing it up?

Which is cheaper, the Levoit Core 400S or the Honeywell HPA300 HEPA Air Purifier?

Levoit Core 400S costs $30 less at list price.

What is the biggest catch with the Levoit Core 400S 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 400S or the Honeywell HPA300 HEPA Air Purifier?

For bedrooms, buy the Levoit Core 400S. Leads 2 of 2 rankable bedrooms specs. Noise levels: 24 dB vs 38 dB

What cannot be compared from spec sheets?

Of the 11 specs tracked here, 5 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.

A few other possibilities.