The Philips PureProtect Water 2-in-1 Air Purifier and Humidifier AC3420 is designed to purify and humidify your home environment effortlessly. Perfect for spaces up to 78 m², this intelligent device removes harmful particles, allergens, and bacteria from the air while ensuring your indoor humidity stays at the optimal level. It’s an all-in-one solution for cleaner, fresher, and more comfortable living.
Powerful Air Purification for Large Rooms
Featuring an advanced air purification rate (CADR) of 300 m³/h, the AC3420 can clean a 20 m² room in under 10 minutes. Its double airflow system distributes purified air evenly across every corner, ensuring that even large spaces receive consistent and efficient purification.
3-Layer HEPA Filtration for Maximum Protection
Breathe confidently with Philips NanoProtect HEPA technology. The 3-layer system—comprising a pre-filter, HEPA NanoProtect, and Active Carbon filter—captures 99.97% of airborne particles as small as 0.003 microns, including dust, pollen, smoke, and certain viruses. This ensures you and your family enjoy cleaner, healthier air every day.
Automatic Humidification up to 650 ml/h
Say goodbye to dry air discomfort. The evaporative humidification system releases pure, hygienic moisture into the air at a rate of up to 650 ml/h. Integrated humidity sensors detect the moisture level in your environment and automatically adjust output to your desired setting—helping to prevent dry skin, sore throats, and other symptoms of low humidity.
Smart Air Sensing and Intelligent Control
Equipped with PM2.5, temperature, and humidity sensors, the AC3420 continuously monitors indoor air quality and adjusts settings for optimal performance. The color-coded feedback ring and digital touch interface provide real-time air quality data at a glance.
You can also connect the purifier to the Philips Air+ App for full remote control, scheduling, and status updates. Plus, voice control via Google Assistant or Alexa makes managing your air effortless.
Quiet, Energy-Efficient, and Eco-Conscious
Operating at just 16.5 dB(A) in Sleep Mode, this purifier ensures a peaceful environment while you rest. Despite its powerful performance, it consumes only 43W of energy—less than many household bulbs. Philips’ sustainable design approach uses over 30% recycled plastic, reducing environmental impact without compromising durability or performance.














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