Size: 36 x 24 x 18 inches Weight: 52.9 pounds CADR rating: 580 cubic feet per minute (smoke), 568 CFM (dust), 450 CFM (pollen) Recommended room size: 4,253 square feet Estimated annual power cost: $17.10/yr

If you’re after the best air purifier that focuses purely on power and not so much aesthetic appeal or price, then the Coway Airmega ProX is worth a look.

Big and heavy, Coway’s Airmega ProX is powerful enough to clear the air in rooms large and small while getting rid of pollen, smells and germs like no other room air purifier. The three-stage filtration process uses activated charcoal and two HEPA filters so that it can work with areas as large as over 4,000 square feet – enough air-cleaning potential for an apartment or small house. Plus, its hidden handles and wheels allow it to b

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