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Key Features
- Thorough cleaning of rooms up to 78 m2
- 3-layer HEPA filtration traps 99.97% of smallest particles
- Automatic humidification of up to 650 ml/h
- Hygienic humidification with NanoCloud technology
- Effectively reduces viruses like H1N1 (flu) from the air
Philips PureProtect Water 3400 Series Smart 2-in-1 Air Purifier and Humidifier - White, AC3420/10

The Philips PureProtect Water 3400 Series Smart 2-in-1 Air Purifier and Humidifier (AC3420/10) is a versatile appliance designed to enhance indoor air quality by combining advanced air purification with efficient humidification.
Key Features:
3-layer HEPA filtration
3-layer filtration made of pre-filter, HEPA NanoProtect and Active Carbon captures 99.97% of particles as small as 0.003 microns 3– smaller than the smallest known virus!
Humidification rate 650ml/h
Combat dry air symptoms such as dry skin, chapped lips, irritated nose or throat, with rapid humidification up to 650 ml/h 4. The humidity is detected and automatically adjusted to your desired setting.
NanoCloud technology
No technology releases cleaner water vapor than NanoCloud. Its ultra-fine mist is invisible to the naked eye and extremely difficult for bacteria or residue to adhere to. Humidify air with up to 99,9% fewer bacteria released than standard ultrasonic humidifiers, safe to use with tap water. 5
1 CADR tested according GB/T18801-2022. Suitable purification area calculated to NRCC-54013 standard.
2 Calculated: 48m3 room, CADR of 300m3/h
3 From the air that passes through the filter, tested to DIN71460 with NaCl aerosol 0.003um and 0.3um, iUTA
4 Tested by CVC according to GB/T 23332-2018. Initial temperature of 23±2°C and relative humidity of 30±2% RH
5 Vs. standard ultrasonic humidifiers without additional technology to reduce the spread of bacteria, as tested by an independent lab
6 Microbial Reduction Rate Test by Airmid Healthgroup Ltd. with influenza (H1N1) in 28.5m3 test chamber, using turbo mode for 30-40min
7 Tested to GB21551.3-2010 with S. Albus, 30m3 chamber, 1h, Turbo mode, 3rd party lab
8 Microbial Reduction Rate Test by Antimikrop with SARS-CoV-2 in 30m3 test chamber, using turbo mode for 1h.
Specifications
Global
- Model Number: AC3420/10
General
- Colour: White
Features
- App-Control: Yes
- Remote Control: Yes
- Timer: Yes
- Voice Control: No
Size
- Effective Area: 78 m2
Design
- Fan Speed: 5
- Water Tank Capacity: 3.2L
Performance
- CADR (m³/h): 300
Safety Features
- Auto Shutoff: Yes
Energy Specification/Power
- Noise Level (dBa): 51
- Power (W): 43watts
Electrical Requirements
- Cord Length: 1.8m
Dimensions
- Depth: 285mm
- Height: 520mm
- Width: 285mm
Weight
- Weight (Kg): 6.5
In The Box & Warranty
- Warranty (Years): 2
Manuals
Why Buy?
Breathe Easier, Live More Comfortably at Home
If the air quality in your home affects how you sleep, breathe, or feel day to day, this Philips 2-in-1 does something genuinely useful — it cleans and moisturises your air at the same time, so you're not just removing the bad stuff, you're actively making the air more comfortable to breathe.
It quietly works through large living spaces, pulling airborne nasties like dust, pollen, pet dander, and even flu viruses out of the air before you breathe them in. At the same time, it adds just the right amount of moisture back into dry indoor air — the kind of dryness that leaves your throat scratchy, your skin tight, or your sleep restless. The humidification side uses a clever hygienic process, so you're not just pushing damp air around — it's clean moisture that actually makes a difference.
It suits bigger homes and open-plan living, and being smart-enabled means you can check in and adjust settings without getting off the couch.
Buy This If…
- You or someone in your household suffers from allergies, asthma, or hay fever
- Your home feels stuffy, stale, or uncomfortably dry — especially in winter
- You want cleaner air without running two separate appliances
- You have a large open-plan living area that needs proper coverage
- You'd rather set and forget than constantly adjust settings manually









