Happy with the product overall. Instruction manual could be better.
Philips
PureProtect Water 3400 Series — 2-in-1 Purifier & Humidifier
Smart 2-in-1 Air Purifier and Humidifier. 3-layer HEPA filtration with 300 m³/h CADR for rooms up to 78 m². NanoCloud hygienic humidification at 650 ml/h with 3.2L tank.
Key Features
- 2-in-1: Purifier + Humidifier
- CADR 300 m³/h, rooms up to 78 m²
- NanoCloud hygienic humidification
- 650 ml/h, 3.2L tank (up to 15h)
Key Features
Engineered for Pure Air
Smart 2-in-1 Air Purifier and Humidifier. 3-layer HEPA filtration with 300 m³/h CADR for rooms up to 78 m². NanoCloud hygienic humidification at 650 ml/h with 3.2L tank.
Clean Air + Ideal Humidity
Purifies and humidifies rooms up to 78 m²
Combat pollutants and dry air with this smart 2-in-1 device. Delivers 300 m³/h CADR purification and 650 ml/h hygienic humidification with NanoCloud technology — safe for baby rooms and sensitive airways.
3-Layer HEPA + NanoCloud
99.97% Filtration with Hygienic Humidification
3-Layer HEPA NanoProtect + Active Carbon
Pre-filter, HEPA NanoProtect and Active Carbon capture 99.97% of particles as small as 0.003 microns. Tested to remove 99.9% of H1N1 influenza virus and 99.97% of SARS-CoV-2.
NanoCloud Hygienic Humidification
Ultra-fine mist that's invisible to the naked eye releases up to 99.9% fewer bacteria than standard ultrasonic humidifiers. Safe to use with tap water. Automatic humidity detection and adjustment.
Undisturbed Sleep
16.5 dB(A) with Night Light
In Sleep mode, it operates at just 16.5 dB — quieter than a whisper. The night light creates a comforting environment for children. 3.2L water tank provides up to 15 hours of continuous humidification.
Smart Control
Air+ App with Humidity Monitoring
AeraSense technology displays PM2.5 and humidity levels in real time. Control via the Air+ app, Alexa or Google Home. AI-powered Auto+ mode adapts to your routine while minimizing noise and energy.
Technical Details
Full Specifications
Combat pollutants and dry air with this 2-in-1 device. Keep indoor air clean, safe, and at your preferred humidity. 3-layer filtration (pre-filter, HEPA NanoProtect, Active Carbon) captures 99.97% of particles as small as 0.003 microns. NanoCloud technology releases up to 99.9% fewer bacteria than standard ultrasonic humidifiers, safe to use with tap water. Automatic humidity detection and adjustment up to 650 ml/h. 3.2L water tank provides up to 15 hours of continuous humidification. Sleep mode at 16.5 dB(A) with night light. Compatible with Philips Air+ app, Alexa and Google Home.
- Model
- AC3420/10
- Type
- 2-in-1 Purifier & Humidifier
- CADR
- 300 m³/h
- Coverage
- Up to 78 m²
- Filtration
- 99.97% at 0.003µm
- Humidification
- 650 ml/h
- Water Tank
- 3.2L (up to 15h)
- Power
- 43W
- Noise Level
- 16.5–51 dB(A)
- Smart Features
- Wi-Fi, Air+ App, Alexa, Google
- Filter Life
- 1 year / 6 months
- Warranty
- 2 Years
Customer Reviews
See Why Customers Love the PureProtect Water 3400 Series — 2-in-1 Purifier & Humidifier
My baby sleeps so much better since we installed this in the nursery.
Air purification is excellent. Fan noise on high speed is slightly noticeable.
Perfect for allergy season. My symptoms have reduced significantly.
The design is beautiful and matches our modern interior perfectly.
Perfect for medium rooms. For larger spaces you might need two.
Good for daily use. Noise level is acceptable but not the quietest.
Great performance and nice design. Would love more colour options.
The design is beautiful and matches our modern interior perfectly.
My baby sleeps so much better since we installed this in the nursery.
Air purification is excellent. Fan noise on high speed is slightly noticeable.
Common Questions
Frequently Asked Questions About the Philips PureProtect Water 3400 Series — 2-in-1 Purifier & Humidifier
Yes. All products sold by Pure & Co come with a standard Australian Type I plug (three-pin angled). No adapter needed.
The PureProtect Water 3400 Series — 2-in-1 Purifier & Humidifier includes a manufacturer-backed warranty. Duration varies by brand - typically 1 to 5 years. See the product specifications or contact us for details.
Shipping is free on all orders over AUD 50. The PureProtect Water 3400 Series — 2-in-1 Purifier & Humidifier (AUD 754) qualifies for free standard delivery Australia-wide.
Yes. The PureProtect Water 3400 Series — 2-in-1 Purifier & Humidifier uses HEPA filtration that captures fine smoke particles (PM2.5 and smaller). During bushfire events, close windows and run the purifier on high speed for rapid air cleaning.
Most HEPA filters last 6 to 12 months under normal use. Heavy use during bushfire season, around pets, or in dusty environments may shorten the interval. The unit's filter indicator will alert you when it's time.
Yes. We offer a 30-day return policy on unused products in original packaging. See the Return Policy page for full details.







