What is the best HEPA air purifier for allergies?

Best overall: Coway Airmega AP-1512HH Mighty. It’s a strong allergy pick for most bedrooms and medium living spaces because it combines true HEPA filtration, activated carbon, an air-quality sensor, auto mode, and widely available replacement filters.

If you want the safest shortlist: choose Coway AP-1512HH for most homes, Levoit Core 300S for a smaller bedroom, Blueair Blue Pure 211i Max for larger rooms, Winix 5500-2 for value, or IQAir HealthPro Plus if you want a premium, high-filtration option and don’t mind the size and cost.

For allergy use, prioritize: a true HEPA or equivalent particle filter, enough room coverage for your space, replacement filter cost/availability, quiet sleep mode, and no intentional ozone generation.