AeraSmart® PM2.5 smart sensors monitors the air quality and automatically adjusts the fan speed to keep air purified, moving and safe. Allergy protection with H13 True HEPA Filtration capturing up to 99.95% of particles as small as 0.1 microns, including. Covers up to 915 square feet. CADR Rating - Dust - 323. CADR Rating - Pollen - 363. CADR Rating - Smoke - 316. 21.2 lb. 12-5/16"W x 12-5/16"D x 295-16"H. 3-year limited warranty. White.