Review · Honeywell
Honeywell HPA300
A no-frills, high-CADR workhorse from Honeywell — AHAM-verified CADR 300 for dust, covers up to 465 sq ft, and one of the strongest performers under $250 for large rooms.
Check Price on AmazonThe verdict
The Honeywell HPA300 is built for one purpose: moving a lot of air through a HEPA filter in a large space, reliably and simply. Its CADR 300 dust rating and 5-year warranty are hard to match at this price. The trade-off is noise and power draw — this is not a bedroom purifier. For large living rooms, open-plan spaces, or post-wildfire smoke recovery, it's a strong choice.
Full specifications
CADR · Smoke 250CFM AHAM
CADR · Dust 300CFM
CADR · Pollen 300CFM
Room coverage 465sq ft
HEPA rating True HEPA (99.97%)
Filter stages 2-stage
Noise · range 44–62dB
Noise · sleep 44dB
Max power 130W
Energy Star No
Filter life 12–12months
Annual filter cost
$54.99 — estimate
Dimensions · H × W × D 22.3″ × 20″ × 10.8″
Weight 17lbs
App control No
Voice control No
Warranty 5years
Price · MSRP $219.99
Pros & cons
Strengths
- CADR 300 dust / 250 smoke — among the highest certified numbers available under $250
- 5-year warranty is exceptional in this category — most brands offer 1–2 years
- Simple 4-button operation — no app, no Wi-Fi, nothing to configure or update
- AHAM-certified 465 sq ft — genuine large-room coverage, not inflated manufacturer claims
- Honeywell brand and 30+ year track record provides retailer and service accessibility
Caveats
- 44–62dB operation — one of the louder units tested. Not suitable for bedrooms
- No auto mode or air quality sensor — fully manual speed selection only
- 130W max power draw and no Energy Star certification — running costs are higher
- Bulky footprint: 20 inches wide and 17 lbs — takes up significant floor space
Where to buy
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Check Price on AmazonPrice last checked 2026-04-01 · affiliate disclosure applies
Data sourced from AHAM Verifide, Amazon listing, Manufacturer site. CADR figures are AHAM Verifide certified. Last updated .