Philips AC4221 Smart Air Purifier for Home, Ideal for Living Room, Metallic

Our Best Purifier - Quiet Energy Efficient - With 600 m3h CADR, the AC4221 covers rooms up to 1679 sqft 156 m2 NRCC or 780 sqft 72 m2 GBT, delivering serious purifying power. 4-Layer HEPA NanoProtect Filtration - Prefilter, HEPA NanoProtect, and 2x Active Carbon layers capture 99.97 of particles down to 0.003 microns, 100x smaller than standard HEPA filters. Uses an electrostatic charge to attract pollutants, cleaning up to 2X more air than traditional HEPA H13 filtration, for the biggest impact. Quiet Even at Maximum Power with SilentWings - Stay quiet even on Turbo power, so purification never disrupts your day. AeraSense Smart Sensing with Color AQI Indicator - Tracks PM2.5, Gas, Temperature, and Humidity in real time, with a color-changing light ring that glows blue for clean air and red as pollution rises, plus an exact PM2.5 number on display. Track Both Indoor Outdoor Air Quality with the Air App - See PM2.5, allergens, and outdoor pollutants like NO2 and pollen, right from your phone, with Auto mode adjusting performance for you automatically. App Control - Turn the device onoff, change fan speed, enable Silent Mode, set Child Lock, and get filter alerts, all from wherever you are. 99.99 Allergen Removal - Helps protect allergy sufferers by removing dust, pollen, and pet dander from your air.

Red Dot Winner 2025 iF Design Award 2026 - The 4200 Series stands out with internationally recognized design, matching serious purifying power with a striking look. India's No. 1 Air Purifier Brand Source Euromonitor International Limited, Consumer Appliances 2026 edition, per air purifiers category definition, retail volume sales in units, 2025 data. Backed by 80 Years Independent Science - From a trusted health brand with 80 years in air purification, proven effective in independent studies including research with Technical University Munich and NHS-collaborated clinical testing.