OVAL AIR is an affordable indoor air filter designed to make your home safer and healthier - without sacrificing style. Customize your air filter to match your decor with changeable covers in the trendiest colors. Reduce allergens and odors at school or at home; in the bedroom, nursery or office. Our ozone-free 3-stage HEPA air filter removes over 99% of indoor air pollutants, cleaning up to 600 sq ft every hour. Modern, space-saving design is slim enough to fit neatly into any room.