BLUEAIR GENUINE FILTER: For Blue Pure 511 air purifier; Blueair genuine Blue Pure 511 replacement filter is designed for optimal performance
FOUR LAYERS ADVANCED FILTRATION: Remove high levels of fine particles, pollen, pet dander, dust mite allergen, viruses and bacteria, mold allergen, and reduces gases and odors
6-MONTH FILTER LIFE: To maintain optimal performance, replace the Blue Pure 511 filter every 6 months; When the filter has reached maximum pollutant saturation, the filter replacement LED will turn red on the interface
