
Levoit Core 400S
Air purifiers
Your shortlist, side by side
Find the differences that matter for your next decision.

Air purifiers

Air purifiers
Start with all rankable specifications, or focus on a particular use.
Your starting point
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)
Look at the differences ↓Side by side
Start with the key specs, then explore as much as you need.
| What you’re comparing | Levoit Core 400S | Honeywell HPA300 HEPA Air Purifier |
|---|---|---|
| CADRPerformance | 260 CFM / 442 m³/h (Smoke), 260 CFM (Dust), 260 CFM (Pollen) | 300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) |
| Room sizePerformance | Bedrooms, apartments, mid-size living spaces | Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH) |
| Coverage areaPerformance | 403 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 typesFilters | 3-Stage: Nylon Pre-filter + H13 True HEPA + High-Efficiency Activated Carbon | Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters |
| Filter lifeFilters | 6–12 months | 3 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
Beyond the spec sheet
Explore the ownership details available for this pair.
Levoit Core 400S
Honeywell HPA300 HEPA Air Purifier
Physical clearance required for airflow, wall placement, and bedroom noise levels.
Wall Clearance Required
360° intake requires 15 in perimeter clearance from walls
Front grille intake: can back up close to baseboards
Nighttime Sleep Mode Noise
24 dB quiet sleep mode
30 dB lowest fan speed (noticeable background white noise)
Unit Footprint & Dimensions
Mid-sized cylinder (10.8 × 10.8 × 20.5 in; 11.0 lb)
Large commercial-grade shell (20.8 × 22.3 × 10.8 in; 17.0 lb)
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Levoit: What to watch for
Requires periodic filter replacements to maintain airflow and odor capture.
Honeywell: What to watch for
Requires periodic filter replacements to maintain airflow and odor capture.
Know what’s behind the comparison
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.
Levoit Core 400S costs $30 less at list price.
Honeywell HPA300 HEPA Air Purifier has this deal-breaker: over 55 dB on high. Louder than normal conversation at full speed.
For bedrooms, buy the Levoit Core 400S. Leads 2 of 2 rankable bedrooms specs. Noise levels: 24 dB vs 38 dB
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.