Best air purifiers for allergies, ranked by certified pollen and dust CADR
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Pollen and dust are the main airborne allergy triggers, and each has its own certified clean air delivery rate. These 10 models have the highest certified pollen CADR among 204 zero-ozone ENERGY STAR air purifiers (data retrieved 2026-11-01). The Coway Airmega ProX scores highest overall, with a pollen CADR of 450 cfm.
The ranking at a glance
| # | Product | Score | Pollen CADR | Dust CADR | Smoke CADR per watt |
|---|---|---|---|---|---|
| 1 | Coway Airmega ProX | 99.9 | 450 cfm | 586 cfm | 10.3 cfm/W |
| 2 | CUCKOO CAC-F3010FW | 92.4 | 450 cfm | 534 cfm | 8.01 cfm/W |
| 3 | Coway AP-3018B | 90.9 | 450 cfm | 433 cfm | 10.33 cfm/W |
| 4 | Fellowes Aeramax SV | 87.6 | 450 cfm | 512 cfm | 6.19 cfm/W |
| 5 | CUCKOO CAC-AH2810FNW | 86.2 | 450 cfm | 466 cfm | 6.91 cfm/W |
| 6 | Coway Airmega 450S | 84.8 | 450 cfm | 454 cfm | 6.55 cfm/W |
| 7 | Coway Airmega 450 | 84.5 | 450 cfm | 445 cfm | 6.69 cfm/W |
| 8 | HealthWay MAX500 | 82 | 450 cfm | 437 cfm | 5.65 cfm/W |
| 9 | Intellipure MAX500 | 82 | 450 cfm | 437 cfm | 5.65 cfm/W |
| 10 | Coway Airmega 350 | 79.4 | 450 cfm | 378 cfm | 6.12 cfm/W |
The products
1. Coway Airmega ProX
- Pollen CADR: 450 cfm (#1 of 10 here)
- Dust CADR: 586 cfm (#1 of 10 here)
- Smoke CADR per watt: 10.3 cfm/W (#2 of 10 here)
- No weak spot among these 10 in the certified data; it does not cover noise or running costs beyond electricity
2. CUCKOO CAC-F3010FW
- Pollen CADR: 450 cfm (#1 of 10 here)
- Dust CADR: 534 cfm (#2 of 10 here)
- Smoke CADR per watt: 8.01 cfm/W (#3 of 10 here)
- No weak spot among these 10 in the certified data; it does not cover noise or running costs beyond electricity
3. Coway AP-3018B
- Pollen CADR: 450 cfm (#1 of 10 here)
- Smoke CADR per watt: 10.33 cfm/W (#1 of 10 here)
- Dust CADR: 433 cfm (#8 of 10 here)
4. Fellowes Aeramax SV
- Pollen CADR: 450 cfm (#1 of 10 here)
- Dust CADR: 512 cfm (#3 of 10 here)
- Smoke CADR per watt: 6.19 cfm/W (#7 of 10 here)
5. CUCKOO CAC-AH2810FNW
- Pollen CADR: 450 cfm (#1 of 10 here)
- Dust CADR: 466 cfm (#4 of 10 here)
6. Coway Airmega 450S
- Pollen CADR: 450 cfm (#1 of 10 here)
- Smoke CADR per watt: 6.55 cfm/W (#6 of 10 here)
7. Coway Airmega 450
- Pollen CADR: 450 cfm (#1 of 10 here)
- Dust CADR: 445 cfm (#6 of 10 here)
8. HealthWay MAX500
- Pollen CADR: 450 cfm (#1 of 10 here)
- Smoke CADR per watt: 5.65 cfm/W (#9 of 10 here)
9. Intellipure MAX500
- Pollen CADR: 450 cfm (#1 of 10 here)
- Smoke CADR per watt: 5.65 cfm/W (#9 of 10 here)
10. Coway Airmega 350
- Pollen CADR: 450 cfm (#1 of 10 here)
- Dust CADR: 378 cfm (#9 of 10 here)
- Smoke CADR per watt: 6.12 cfm/W (#8 of 10 here)
How this ranking is scored
We compared the 10 zero-ozone ENERGY STAR air purifiers with the highest certified pollen CADR, then weighed pollen, dust and efficiency.
- Pollen CADR (45%): how fast it removes pollen, the largest test particle (higher is better)
- Dust CADR (35%): how fast it removes dust (higher is better)
- Smoke CADR per watt (20%): clean air per watt of electricity (higher is better)
FAQ
Will an air purifier stop my allergies?
It lowers airborne pollen and dust in the room it runs in; it does not remove allergens from bedding or carpets. Ask a doctor about treatment.
What is the difference between pollen and dust CADR?
They are separate certified tests with different particle sizes. On this page pollen CADR ranges from 450 to 450 cfm and dust CADR from 378 to 586 cfm.
Do any of these produce ozone?
No. Every model on this page has 0.00 ppb certified ozone emissions.
Where do these numbers come from?
From the U.S. EPA ENERGY STAR certified Room Air Cleaners dataset (retrieved 2026-11-01). We rank the certified CADR and energy results; we did not test the units ourselves.