Coway Airmega 400: 7 of 8 decision facts sourced.
Levoit Core 600S: 4 of 8 decision facts sourced. Missing: CADR dust, CADR pollen, Filter cost, Filter life.
| Coway Airmega 400 | Levoit Core 600S | |
|---|---|---|
| Price today | Price not yet checked | Price not yet checked |
| CADR smoke | 328 cowaymega.com | 410 cubic feet per minute bestbuy.com |
| CADR dust | 328 cowaymega.com | Not yet sourced |
| CADR pollen | 400 cowaymega.com | Not yet sourced |
| Room size | 3,120 ft2 at 1 ACH; 1,560 ft2 at 2 ACH cowaymega.com | 606 ft2 at 4.8 ACH (2909 ft2 at 1 ACH) levoit.com |
| Filter life | 6-12 months cowaymega.com | Not yet sourced |
| Noise | 22~52 dB(A) cowaymega.com | 26-55 dB levoit.com |
| Starting MSRP | $649.00 cowaymega.com | $299.99 levoit.com |
Not yet sourced — Coway Airmega 400: Filter cost. Levoit Core 600S: CADR dust, CADR pollen, Filter cost, Filter life. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.
Verdict: On the figures both makers publish, the Core 600S leads with lower noise (26-55 dB vs 22~52 dB(A)) and lower starting price ($299.99 vs $649). Neither publishes filter cost yet.
Provisional pick: Coway Airmega 400 — not enough sourced decision facts for Levoit Core 600S. We don't rank on specs we can't verify.
| Coway Airmega 400 | Levoit Core 600S | |
|---|---|---|
| CADR smoke | 328 | 410 cubic feet per minute |
| CADR dust | 328 | — |
| CADR pollen | 400 | — |
| Room size | 3,120 ft2 at 1 ACH; 1,560 ft2 at 2 ACH | 606 ft2 at 4.8 ACH (2909 ft2 at 1 ACH) |
| Noise | 22~52 dB(A) | 26-55 dB |
| Filter life | 6-12 months | — |
Provisional pick: Coway Airmega 400 — not enough sourced decision facts for Levoit Core 600S.
The Winix 5500-2 has a 360 sq ft CADR rating and costs about $150, while the Coway Airmega 400S covers 1,560 sq ft with 4.8x higher CADR and costs around $450. The Coway 400S is the clear winner for larger rooms and smart features, though the Winix is the better budget option for small spaces.
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