Keep your home a safe haven with the Blue Pure 511i Max, featuring advanced air purification that’s quiet enough for nap time yet powerful enough for allergy season. Quickly cleans 193 ft² in 12.5 minutes, 460 ft² in 30 minutes, & 920 ft² in 1 hour. Automatically detects and quickly removes pollutants such as viruses, bacteria, dust, and odors. Compact with 360-degree air intake, so you can place it anywhere-on the floor or table. RealTrack in-app filter monitoring accurately tracks filter lifetime based on usage and pollutant levels.