Shark NeverChange™ Air Purifier, saves you $300 or more in filter replacement costs over 5 years*. Covers up to 650sq. ft. (60 sq.m.), for powerful purification. Odour Neutralizer Technology guards against odours throughout your home, releasing a fresh scent. A HEPA filter captures 99.98% of particles. *Vs. cost of replacing filters on a competitor unit over 5-year period in 300 sqft (28 sq.m) space.