3M Allergen Reduction Filter, 16-Inch by 25-Inch by 4-Inch, 4-Pack

The Filtrete Ultra Clean Air Purifier is the perfect complement to any home comfort product set. Until now, consumers had to choose between bulky, noisy HEPA purifiers, or quiet, but much less effective, smaller designs. Now 3M has developed an air purifier that delivers maximum efficiency in one quiet, stylish, compact unit. The key to this delivery system is the combination of Filtrete filter technology and cutting edge design. This Filtrete(TM) Air Purifier offers more Air circulation and a higher dust and pollen capture rate than a comparable HEPA Air Purifier. For rooms 350 sq. feet. or less.