Blueair Blue Pure 311i+ vs Honeywell HPA300 — Which Should You Buy?
Side-by-side comparison of Blueair Blue Pure 311i+ and Honeywell HPA300. We compare specs, performance, and value to help you decide.
Feature Comparison
| Feature | Blueair Blue Pure 311i+ | Honeywell HPA300 |
|---|---|---|
| Room Coverage | Up to 387 sq ft | Up to 465 sq ft |
| CADR | 250 (smoke), 250 (dust), 250 (pollen) | 320 (smoke), 300 (dust), 300 (pollen) |
| Filter Type | HEPASilent + activated carbon | True HEPA + activated carbon |
| Filter Life | 6 months (main filter) | 12 months |
| Annual Filter Cost | ~$60 | ~$50 |
| Noise Level | 31–56 dB | 30–55 dB |
| Smart Features | App, scheduling | None |
| Air Quality Sensor | Yes | No |
| Weight | 8.4 lbs | 17.5 lbs |
| Energy Star | Yes | Yes |
Blueair Blue Pure 311i+
Pros
- ✓HEPASilent technology is very quiet
- ✓Washable fabric pre-filter
- ✓Energy-efficient operation
- ✓App control and scheduling
- ✓Multiple filter color options
- ✓Compact design
- ✓Low filter costs
Cons
- ✗Lower CADR than competitors
- ✗Fabric filter attracts dust visibly
- ✗No particle display
Honeywell HPA300
Pros
- ✓High CADR for the price
- ✓Covers up to 465 sq ft
- ✓True HEPA filtration
- ✓Turbo mode for quick cleaning
- ✓Allergen filter option available
- ✓5-year warranty
- ✓Proven reliability
Cons
- ✗No smart features
- ✗Can be loud on high
- ✗Basic, utilitarian design
Our Verdict
Blueair Blue Pure 311i+
A solid choice for smaller rooms where quiet operation and aesthetics matter. The washable pre-filter helps reduce long-term costs.
Limited Offer — Check Today's PriceHoneywell HPA300
Best for allergy sufferers who want maximum filtration power and don't need app control. A dependable choice for large bedrooms and living rooms.
Limited Offer — Check Today's PriceOur Methodology
We test each air purifier in a sealed 250 sq ft room with a particle counter, measuring PM2.5 reduction over 1 hour. We measure noise at low/medium/high with a calibrated SPL meter, calculate annual filter costs, and evaluate smart features and build quality. No manufacturer has editorial influence.
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