Philips PureProtect Water 3400 Series HEPA NanoProtect Replacement Filter

Pure air and comfort, always

The Philips PureProtect Water 3400 Series HEPA NanoProtect Replacement Filter is the genuine replacement filter engineered for your Philips PureProtect Water 3400 Series 2-in-1 air purifier and humidifier. Keep your device delivering clean, comfortable air with a fast and effortless filter replacement.

This advanced 3-in-1 filter combines a pre-filter, HEPA NanoProtect layer and Active Carbon filter into a single unit — capturing 99.97% of airborne particles as small as 0.003 microns, while also neutralising odours and harmful gases. It's designed for a perfect fit with your device, and the smart filter status indicator on your purifier tells you exactly when it's time to replace it.

Key Features

• Genuine Philips filter engineered for a perfect fit with your PureProtect Water 3400 Series device, ensuring consistently smooth and optimal performance
• 3-layer filtration — pre-filter, HEPA NanoProtect and Active Carbon — captures 99.97% of particles as small as 0.003 microns¹, protecting you from pollutants, viruses, allergens, bacteria and odours
• Compatible with the Philips PureProtect Water 3400 Series 2-in-1 Air Purifier & Humidifier (AC3420, AC3421) — sold separately
• Long-lasting filter lifespan of up to 1 year² — vacuum the pre-filter regularly to maintain peak filtration performance
• Smart filter status indicator on your device notifies you when it's time for a replacement; maintenance takes less than a minute
• Connect with the Air+ app to monitor your filter status and easily order a replacement when needed
• Dimensions: 15.3 x 24.5 x 24.5 cm | Weight: 0.8 kg

¹ From the air that passes through the filter, tested to DIN71460 with NaCl aerosol 0.003µm, iUTA.
² Lifetime of filter depends on air quality and usage.