Choose Honeywell HPA300 if you want lower noise.
Which purifier has higher CADR?
Honeywell HPA300 has published CADR; Honeywell HEPA Air Purifier does not.
Which purifier is quieter?
Honeywell HPA300 is quieter (53 vs 60 dB).
Which purifier covers a larger room?
Honeywell HPA300 is recommended for about 465 sq ft based on CADR.
Which purifier has better smart features?
Neither lists Wi-Fi or app control in our sources.
Which purifier has better filtration?
Honeywell HEPA Air Purifier lists HEPA; Honeywell HPA300 lists True HEPA.
Bottom line
Choose Honeywell HPA300 if you want lower noise.
| Metric | Honeywell HEPA Air Purifier | Honeywell HPA300 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | — | 300 CFM | — |
| Recommended room size | — | 465 sq ft | — |
| Manufacturer claimed coverage | 2423 sq ft | — | — |
| Minimum noise | 60 dB | 53 dB | Honeywell HPA300 |
| Filter type | HEPA | True HEPA | — |
| Wi-Fi / app | No | No | — |
| Weight | 20.5 lb | — | — |