Coway Airmega 400: 7 of 8 decision facts sourced.
Honeywell HPA300: 0 of 6 decision facts sourced. Missing: Power, Capacity, Dimensions, Weight, Warranty, Starting MSRP.
| Coway Airmega 400 | Honeywell HPA300 | |
|---|---|---|
| Price today | Price not yet checked | Price not yet checked |
| CADR smoke | 328 cowaymega.com | Not yet sourced |
| 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 | Not yet sourced |
| Filter life | 6-12 months cowaymega.com | Not yet sourced |
| Noise | 22~52 dB(A) cowaymega.com | Not yet sourced |
| Starting MSRP | $649.00 cowaymega.com | Not yet sourced |
Not yet sourced — Coway Airmega 400: Filter cost. Honeywell HPA300: Power, Capacity, Dimensions, Weight, Warranty, Starting MSRP. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.
Verdict: However, the Honeywell HPA300 is the better value for smaller spaces, costing roughly half as much upfront with cheaper replacement filters. Choose the Coway for large rooms and convenience, or the Honeywell for budget-conscious buyers in smaller areas.
Coway Airmega 400 lists at $499.99 while Honeywell HPA300 lists at $249.99 — Honeywell HPA300 undercuts Coway Airmega 400 by $250 (100%).
Provisional pick: Coway Airmega 400 — not enough sourced decision facts for Honeywell HPA300. We don't rank on specs we can't verify.
Specs not yet sourced for Honeywell HPA300 — no manufacturer, official or retailer source we read publishes them yet.
| Coway Airmega 400 | Honeywell HPA300 | |
|---|---|---|
| CADR smoke | 328 | — |
| CADR dust | 328 | — |
| CADR pollen | 400 | — |
| Room size | 3,120 ft2 at 1 ACH; 1,560 ft2 at 2 ACH | — |
| Noise | 22~52 dB(A) | — |
| Filter life | 6-12 months | — |
Provisional pick: Coway Airmega 400 — not enough sourced decision facts for Honeywell HPA300.
The Winix 5500-2 has a 360 sq ft CADR rating and costs about $180, while the Coway Airmega 400S covers 1,560 sq ft with a 350 sq ft CADR and sells for around $450. The Winix is the better value for most rooms under 400 sq ft.
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