Which One Should You Choose?
Where Can You Buy It?
Trusted brands we recommend based on CADR ratings, filter quality, and real-world performance.
Frequently Asked Questions
Is Winix better than Honeywell?
Different strengths. Honeywell wins on raw CADR per dollar, ozone-free operation, and warranty length (5 years on HPA-series). Winix wins on auto mode, air quality sensing, noise (28 dB on 5500-2), and modern design. For pure performance and value, Honeywell HPA300 is hard to beat. For features and bedroom use, Winix 5500-2 is the better pick. Both are excellent brands with established track records.
Is the Honeywell HPA300 still the best large-room value in 2025?
Yes. The HPA300 has been a Wirecutter and Consumer Reports favorite for years and remains the best CADR-per-dollar air purifier at the $250 price point. CADR 300 smoke / 320 dust / 300 pollen in a 465 sq ft room is hard to match from any brand. The main competition at this price comes from the Winix 9800 ($230, CADR 370) and the Coway Airmega 300 ($250, CADR 350 with smart features).
Is Winix PlasmaWave safe?
PlasmaWave generates small amounts of ozone, measured at under 0.01 ppm in independent testing — well below the 0.05 ppm FDA limit for indoor air devices. It can be disabled in the menu. Most users leave it off and still get excellent HEPA filtration. For ozone-sensitive households (severe asthma, COPD, MCS), choose Honeywell instead — it has no ionization stage.
Which has cheaper replacement filters, Winix or Honeywell?
Honeywell. The HPA300 filter runs $40–$60 per change, replaced annually, totaling $200–$300 over 5 years. The Winix 5500-2 has a 4-stage filter system with the carbon pre-filter needing replacement every 3 months ($15 each) and the main HEPA annually ($50), totaling $300–$400 over 5 years. Honeywell's simpler filter design is cheaper long-term.
Which is quieter, Winix or Honeywell?
Winix. The 5500-2 hits 28 dB on its lowest setting — quieter than a typical library and bedroom-friendly. The Honeywell HPA300 bottoms out at around 42 dB, which is still quiet but noticeably louder. For light sleepers or nursery use, Winix is the better choice. The Winix A231 (26 dB) is even quieter for compact bedrooms.
Where can I buy Winix and Honeywell air purifiers?
Both brands are widely available. Amazon carries the full lineup of both. Honeywell HPA-series is also sold at Home Depot, Lowe's, Walmart, Target, and Best Buy — easier to source in an emergency. Winix is mostly Amazon-direct plus the Winix website. Replacement filters follow the same pattern: Honeywell filters at big-box stores, Winix filters mostly Amazon and Winix.com.