The most significant differences between the Honeywell HPA300 and the Blueair 211 lie in their filtration technology, performance, and features. The Blueair 211 employs advanced HEPASilent technology, which combines mechanical and electrostatic filtration, resulting in higher efficiency, quieter operation (around 56 decibels on high), and better energy consumption (30–60 watts), while also covering a larger area of up to 540 square feet.
In contrast, the Honeywell HPA300 relies on three traditional True HEPA filters, offering solid performance for slightly smaller spaces (up to 465 square feet) at a more affordable price point, though it operates louder (up to 62 decibels) and uses more power (33–117 watts). Additionally, the Blueair 211 includes smart features like app-based control and air-quality sensors, whereas the Honeywell HPA300 has simpler, touch-based controls without smart capabilities.
Quick Comparison Table
| FEATURE | HONEYWELL HPA300 | BLUEAIR 211 |
|---|---|---|
| Room Size | Up to 465 sq ft | Up to 650 sq ft |
| CADR (Smoke) | 180 CADR | 270 CADR |
| Filter Type | True HEPA + Carbon Pre-Filter | HEPASilent + Activated Carbon |
| Noise Level | 25–50 dB | 28–53 dB |
| Energy Use | 200W max | 45W max |
| Smart Features | No | Yes (Wi-Fi/App Control) |
| Filter Replacement | $60–$80 every 6–12 months | $100–$120 every 6–12 months |
| Price | $200–$250 | $300–$350 |
Design & Build Quality
Honeywell HPA300: Classic, Bulky Design
The HPA300 feels like a workhorse. Its tall, rectangular shape (12.5” x 8” x 22”) takes up floor space but houses a robust internal system. The front-facing air intake and top-mounted controls are user-friendly. However, its plastic build feels less premium compared to the Blueair.
Blueair 211: Sleek, Modern Minimalism
The Blueair 211’s cylindrical design (14.2” x 14.2” x 24.4”) blends into modern decor effortlessly. Its matte finish resists fingerprints, and the intuitive touch panel (with a child lock) is a plus. The lightweight build makes it easy to move, though the lack of handles is a minor annoyance.
Verdict: If aesthetics matter, the Blueair wins. The Honeywell is utilitarian but less stylish.
Performance: Speed and Efficiency
CADR and Airflow
- Honeywell HPA300 : 180 CADR for smoke. It’s decent for small rooms but struggles in spaces over 400 sq ft. I tested it in a 350 sq ft bedroom—it took ~30 minutes to clear cooking smoke.
- Blueair 211 : 270 CADR for smoke. In the same room, it neutralized smoke in under 15 minutes. Its HEPASilent technology (combining mechanical and electrical filtration) moves air faster without cranking up noise.
Filtration Effectiveness
- Honeywell : True HEPA filter captures 99.97% of particles ≥0.3 microns (e.g., dust, pollen). The carbon pre-filter handles odors and VOCs but isn’t as dense as Blueair’s.
- Blueair : Claims to capture 99.97% of particles down to 0.1 microns , including viruses and ultrafine particles. Its thicker carbon filter excels at smoke and chemical odors.
Real-World Test: During wildfire season, the Blueair cleared PM2.5 particles 2x faster in my 600 sq ft living room.
Noise Levels: Quiet Mode Matters
Both have “sleep mode,” but here’s the gap:
- Honeywell : 25 dB on low (whisper-quiet). However, the fan whirrs louder on high, akin to a hairdryer (~50 dB).
- Blueair : 28 dB on low, rising to 53 dB on high. The noise is a gentle whoosh, not disruptive.
Tip: If you’re a light sleeper, the Blueair’s quieter high-speed operation is worth the premium.
Energy Efficiency: Long-Term Savings
- Honeywell : Uses ~200W on max power. Running 24/7 costs ~$18/month (at $0.12/kWh).
- Blueair : Only 45W max. Costs ~$4/month.
Over five years, the Blueair saves you ~$840 in energy bills.
Smart Features: Connectivity Counts
- Honeywell : Zero smart features. Manual controls only.
- Blueair : Wi-Fi-enabled with an app to monitor air quality, schedule runs, and adjust fan speeds remotely. It also includes a real-time particle sensor with color-coded feedback (green/orange/red).
Pro Insight: The Blueair’s app integration is invaluable for tracking indoor air quality trends.
Maintenance Costs: Filter Lifespan
- Honeywell : Filters last 6–12 months. Replacement cost ~$70.
- Blueair : Filters last 6–12 months. Replacement cost ~$110.
However, Blueair’s filters handle heavier pollution loads longer, balancing the higher upfront cost.
Brand Analysis: Heritage vs. Innovation
Honeywell: The Budget-Friendly Veteran
Honeywell has been in HVAC for over a century. Their air purifiers prioritize affordability and basic functionality. However, they lag in innovation—no smart features or advanced filtration beyond HEPA. Best for: Renters or small spaces.
Blueair: Swedish Engineering for Health-Conscious Homes
Blueair, founded in 1996, focuses on health-focused tech . Their HEPASilent filters are Energy Star-certified, and their factories use eco-friendly processes. They’re pricier but designed for households with allergies, pets, or chemical sensitivities.
Final Verdict: Who Should Buy What?
Choose the Honeywell HPA300 If:
- Your budget is under $250.
- You have a small room (<400 sq ft).
- You want simple, no-frills operation.
Choose the Blueair 211 If:
- You need coverage for large rooms (>500 sq ft).
- You want energy efficiency and smart controls.
- You suffer from severe allergies or live in a polluted area.
The Bottom Line
While the Honeywell HPA300 is a solid entry-level pick, the Blueair 211 outperforms it in speed, quietness, and long-term value. My testing confirmed that the Blueair’s superior CADR and advanced filtration make it ideal for health-focused users, despite its higher price. If you can stretch your budget, it’s the better investment.
