CLEARANCE SALE - UP TO 50% OFF - SHOP NOW

Philips PureProtect Water 3400 Series Humidification Replacement Filter

  $34.95
  • Genuine Philips humidification filter designed for a perfect fit with the PureProtect 3400 Series, ensuring consistently high performance
  • Compatible with Philips PureProtect 3400 Series 2-in-1 air purifier and humidifier models AC3420 and AC3421 only (sold separately)
  • Provides consistent protection and guarantees optimal filtration for up to 6 months
  • NanoCloud technology humidifies air with up to 99.9% fewer bacteria released than standard ultrasonic humidifiers - safe to use with tap water
  • Connect your device to the Air+ app to easily monitor filter life and order replacement filters when needed
Philips PureProtect Water 3400 Series Banner Philips PureProtect Water 3400 Series Mobile Banner

Philips PureProtect Water 3400 Series Humidification Replacement Filter

Philips PureProtect Water 3400 Series Humidification Replacement Filter

Hygienic humidification, always

The Philips PureProtect Water 3400 Series Humidification Replacement Filter keeps your compatible 2-in-1 air purifier and humidifier running at its best, ensuring consistently clean and comfortable air in your home.

Designed exclusively for the Philips PureProtect 3400 Series, this genuine replacement filter uses innovative NanoCloud technology to emit an ultra-fine mist invisible to the naked eye — humidifying your air with up to 99.9% fewer bacteria released compared to standard ultrasonic humidifiers. Safe to use with tap water.

Key Features

  • Genuine Philips humidification filter designed for a perfect fit with the PureProtect 3400 Series, ensuring consistently high performance
  • Compatible with Philips PureProtect 3400 Series 2-in-1 air purifier and humidifier models AC3420 and AC3421 only (sold separately)
  • Provides consistent protection and guarantees optimal filtration for up to 6 months (2)
  • NanoCloud technology humidifies air with up to 99.9% fewer bacteria released than standard ultrasonic humidifiers — safe to use with tap water (1)
  • Connect your device to the Air+ app to easily monitor filter life and order replacement filters when needed
  • Dimensions: 20.6 x 14.1 x 20.6 cm

(1) Vs. standard ultrasonic humidifiers without additional technology to reduce the spread of bacteria, as tested by an independent lab.
(2) Filter lifetime may vary depending on usage and environmental conditions.

Philips PureProtect Water 3400 Series Humidification Replacement Filter

Key Benefits

Compatible with PureProtect Water 3400 Series

Compatible with PureProtect Water, 3400 Series

Replacement humidification filter for Philips PureProtect 3400 Series 2-in-1 air purifier and humidifier: AC3420 and 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.

Hygienic humidification with NanoCloud technology

Hygienic humidification with NanoCloud technology

NanoCloud emits an ultra-fine mist that is invisible to the naked eye. It humidifies air with up to 99.9% fewer bacteria released than standard ultrasonic humidifiers, safe to use with tap water. (1)

Connect with the Air+ app for added convenience

Connect with the Air+ app for added convenience

Connect your device to the Air+ app and easily order replacement filters when needed.

Tips Lightbulb

Tip: How do you reset your filter light?

  • Press the power button to turn on your PureProtect 3400 Series device.
  • Once the new filter is installed, the device will detect the replacement and reset the filter lifetime counter automatically. If needed, refer to your device user manual or the Air+ app for manual reset instructions.

Used for

Philips PureProtect Water 3400 Series 2-in-1 Air Purifier & Humidifier (AC3420)

Combat pollutants and dry air with this intelligent 2-in-1 device, keeping indoor air clean, safe, and at your preferred humidity.

  • Suitable for large rooms up to 78 m2
  • 3-layer filtration with NanoProtect HEPA, Active Carbon and pre-filter captures 99.97% of particles as small as 0.003 microns
  • NanoCloud humidification with up to 99.9% fewer bacteria than standard ultrasonic humidifiers
  • Smart Air+ app control with AeraSense technology scanning air 1,000× per second

MORE INFO

Philips PureProtect Water 3400 Series 2-in-1 Air Purifier & Humidifier (AC3421)

The AC3421 variant of the PureProtect 3400 Series — ideal for those seeking quiet, intelligent air purification and hygienic humidification in one device.

  • Compatible with FY3401/00 humidification filter and FY3400/30 purification filter
  • Quiet Sleep mode operating at just 16.5 dB with dimmed display for undisturbed rest
  • Energy efficient at maximum 43W — less than a traditional light bulb

MORE INFO

About Philips

Philips Logo

Philips is a leading health technology company focused on improving people's health and enabling better outcomes across the health continuum from healthy living and prevention.

Philips leverages advanced technology and deep clinical and consumer insights to deliver integrated solutions. The company is a leader in diagnostic imaging, image-guided therapy, patient monitoring, and health informatics, as well as in consumer health and home care.

Philips Logo

Manufacturer's Specifications

Type Replacement Filter
Model Compatibility AC3420 and AC3421
Filter Replacement Frequency Up to 6 months when used 24 hours a day
Manufacturer Philips
Category Air Quality

How to Order - More Information

Sleep Solutions is registered as a provider with the NDIS (National Disability Insurance Scheme)

Customer Reviews

Share your thoughts with other customers

Write Your Own Review for Philips PureProtect Water 3400 Series Humidification Replacement Filter

1. How many stars do you rate this product (1 = Poor – 5 = Excellent)

Overall:

(Click the star that matches the rating you wish to give)

2. Your details

Loading...

You submitted your review for moderation.

This form is protected by reCAPTCHA - the Google Privacy Policy and Terms of Service apply.

FY3401 00