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  • Original humidifying filter for PureProtect 3400
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  • Original humidifying filter for PureProtect 3400
  • Original humidifying filter for PureProtect 3400
  • Original humidifying filter for PureProtect 3400
  • Original humidifying filter for PureProtect 3400
  • Turntable image 1Turntable image 2Turntable image 3Turntable image 4Turntable image 5Turntable image 6Turntable image 7Turntable image 8Turntable image 9Turntable image 10Turntable image 11Turntable image 12Turntable image 13Turntable image 14Turntable image 15Turntable image 16Turntable image 17Turntable image 18Turntable image 19Turntable image 20Turntable image 21Turntable image 22Turntable image 23Turntable image 24Turntable image 25Turntable image 26Turntable image 27Turntable image 28Turntable image 29Turntable image 30Turntable image 31Turntable image 32Turntable image 33Turntable image 34Turntable image 35Turntable image 36Turntable image 37Turntable image 38Turntable image 39Turntable image 40Turntable image 41Turntable image 42Turntable image 43Turntable image 44Turntable image 45Turntable image 46Turntable image 47Turntable image 48Turntable image 49Turntable image 50Turntable image 51Turntable image 52Turntable image 53Turntable image 54Turntable image 55Turntable image 56Turntable image 57Turntable image 58Turntable image 59Turntable image 60Turntable image 61Turntable image 62Turntable image 63Turntable image 64Turntable image 65Turntable image 66Turntable image 67Turntable image 68Turntable image 69Turntable image 70Turntable image 71Turntable image 72
  • Original humidifying filter for PureProtect 3400
  • Original humidifying filter for PureProtect 3400
  • Original humidifying filter for PureProtect 3400

PureProtect Water 3400 SeriesHumidification filter

FY3401/00

1
| (1) Review
Original humidifying filter for PureProtect 3400
The original Philips humidification filter perfectly fits your device for consistently high performance. It uses NanoCloud technology to emit nano-sized molecules of pure water vapor and humidify the air with up to 99,9% less bacteria (1)
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Compatible products
PureProtect Water 3400 Series

PureProtect Water 3400 Series
Smart 2-in-1 Air Purifier and Humidifier

AC3420/10

NanoCloud technology with hygienic humidification

Original humidifying filter for PureProtect 3400

  • Compatible with 3400 Series

  • Lifespan up to 6 months

  • NanoCloud technology

  • Original Philips filter

Compatible with PureProtect Water, 3400 series

Compatible with PureProtect Water, 3400 series

Replacement humidification filter for Philips PureProtect 3400 Series, 2in1 air purifier and humidifier: AC3420, AC3421. You can find your air purifier model on the bottom of the device.

Up to 6 months of usage

Up to 6 months of usage

This humidification filter provides consistent protection and guarantees optimal filtration for up to 6 months (2).

Original Philips filter for the best performance

Original Philips filter for the best performance

The original Philips filter is designed for a perfect fit with your device. For optimal performance, always use the genuine Philips filter.

Technical Specifications

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Reviews

These reviews are managed by Bazaarvoice and comply with the Bazaarvoice Authenticity Policy, which is supported by anti-fraud technology and human analysis. Details may be found at
Customer opinions in the form of product and star ratings are useful for all customers. They allow you to learn more about the product and help you make a purchase decision. Any customer who has purchased a product online or in store can submit a review

1.0

of 5

1

Review

5
4
3
2

14/05/2026

United Kingdom

United Kingdom

Shouldn’t be allowed

Selling a product without replacement filters should be illegal.

This review was made for PureProtect Water 3400 Series Humidification filter

This review was made for PureProtect Water 3400 Series Humidification filter

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Disclaimers

  1. (1) Vs. standard ultrasonic humidifiers without additional technology to reduce the spread of bacteria, as tested by an independent lab

  2. (2) Lifetime of filter depends on the air quality and usage.