LARGE COVERAGE UP TO 78 m² – With a CADR of 300 m³/h, it purifies a 20 m² room in under 10 minutes (1); ideal for large living spaces and fast purification ADVANCED 3-LAYER HEPA FILTRATION – Captures 99.97% of ultra-fine particles as small as 0.003 microns; Philips NanoProtect HEPA cleans 2x more air than traditional HEPA H13 (3) CERTIFIED ALLERGY-FRIENDLY – ECARF-certified to remove 99.99% of pollen, dust mite, and pet allergens (7); perfect for allergy and asthma sufferers ULTRA-QUIET & ENERGY-EFFICIENT – Operates at just 15 dB in sleep mode (4); consumes only 27W, less than a traditional light bulb, for cost-effective performance SMART SENSING & CONNECTIVITY – Air+ app notifies of poor air quality and allows remote control; professional sensor scans and displays real-time air quality on screen and app DURABLE & TESTED FOR QUALITY – Backed by 80+ years of air care expertise; undergoes 170 rigorous quality tests; smart-change indicator alerts when the 1-year-lasting FY1700 filter needs replacing