Air Purifier Test Comparison – the 5 Best Air Purifiers 2025

Fine dust, pollen, animal hair or mold spores – air purifiers are the solution for clean interiors and a healthier indoor climate. Allergy sufferers, asthmatics and people in cities in particular benefit from these devices. In the 2025 comparison, we present the five best models. Filter performance, noise level, ease of use, sensor technology and price-performance ratio were evaluated.
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28. September 2025
28. September 2025
#1
1. Test winner: Philips AC2889/10 Air Purifier Series 2000i

1. Test winner: Philips AC2889/10 Air Purifier Series 2000i

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Pros

  • Highly effective HEPA filter removes up to 99.97% of all particles from 0.3 microns
  • Activated carbon filter against odors gases (e.g. formaldehyde)
  • Automatic air quality sensor real-time display
  • Suitable for rooms up to 80 m² – ideal for living rooms or open-plan offices
  • Very quiet night mode with light dimming
  • Filter change indicator with reminder function
  • App control via Clean Home+ with timer statistics

Cons

  • Filters must be purchased approx. every 12 months
  • No carrying handles – a little unwieldy when changing rooms

TEST WINNER

4.7 / 5

VERY GOOD

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What room size is the device suitable for?

Up to 80 m² – perfect for living rooms, offices or bedrooms.

Can the air purifier be controlled via an app?

Yes, via the Clean Home+ app with air quality history, timer remote start.

How loud is the device during operation?

Very quiet in night mode (only 20 dB), between 32–64 dB in automatic mode.

What is filtered?

Fine dust, allergens, pollen, mold spores, bacteria, smoke, odors and volatile gases.

How often does the filter need to be changed?

HEPA and activated carbon filters last about 12 months – depending on the location.

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Philips AC2889/10 Air Purifier Series 2000i

Clean air for your home – automatically, quietly and reliably

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#2
Levoit Core 400S Smart Air Purifier

Levoit Core 400S Smart Air Purifier

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Pros

  • 3-in-1 filter: pre-filter, HEPA H13 activated carbon
  • Control via app, Alexa, Google Assistant
  • Particularly quiet (24 dB) – ideal for the bedroom
  • CADR: 400 m³/h – suitable for rooms up to 83 m²
  • Real-time display of air quality automatic mode
  • Energy-efficient – only 38 W in operation
  • Filter change alarm night mode

Cons

  • Without fixing button/zipper connection
  • Comparatively rarely available in XXL sizes

4.6 / 5

GOOD

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#3
Levoit Core 400S Smart Air Purifier

Levoit Core 400S Smart Air Purifier

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Pros

  • 3-layer filtration incl. activated carbon HEPA
  • Control via app voice assistant
  • Compact, light modern in design
  • Suitable for rooms up to 60 m²
  • Real-time air quality via OLED display

Cons

  • No recessed grip – makes changing location difficult
  • Filter change approx. every 6 months
  • Sometimes plastic smell in the first week

4.5 / 5

GOOD

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#4
Soehnle Airfresh Clean Connect 500

Soehnle Airfresh Clean Connect 500

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Pros

  • 4-stage filtration with ionizer UV-C light
  • HEPA H13 filter removes pollen, fine dust viruses
  • Suitable for rooms up to 55 m²
  • App control timer function
  • Washable pre-filter extends service life

Cons

  • UV lamp must be replaced after approx. 2 years
  • Fan a little loud in turbo mode
  • App sometimes unstable on older devices

4.3 / 5

GOOD

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#5
Medion MD 10378 air purifier with HEPA

Medion MD 10378 air purifier with HEPA

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Pros

  • HEPA H13 filter removes 99.95% of all suspended particles
  • Compact design – ideal for bedrooms children’s rooms
  • Microfiber surface pleasantly soft
  • Filter change indicator included
  • Very good value for money

Cons

  • No smart feature or app connection
  • Only manual operation via keypad
  • Filters cannot be reordered individually in retail

4.2 / 5

GOOD

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Important Criteria when Buying an Air Purifier

  • Filter type: HEPA H13 or higher is standard for allergy sufferers and fine dust
  • Room coverage: The larger the room, the higher the CADR value (at least 300 m³/h for 50 m²)
  • Noise level: Under 30 dB in night mode is ideal for the bedroom
  • Smart Features: App and voice control increase comfort, especially with regular use
  • Filter change: Pay attention to easy availability affordable replacement filters

Why the Philips AC2889/10 is the Test Winner

The Philips AC2889/10 combines first-class filter technology with intuitive control – whether via app or automatically via the air quality sensor. The device impresses with strong performance (CADR up to 333 m³/h), quiet operation and extensive functions such as real-time display, night mode and filter reminder. Ideal for allergy sufferers, city dwellers or families with children. The robust workmanship and reliable technology complete the picture.

Buying Advice: which Air Purifier is Right for You?

Small rooms require less power, large open spaces require models with a high CADR value. HEPA H13/14 is a must for allergy sufferers, while tech-savvy users prefer smart models with app control. If you want absolute silence, you should pay attention to night mode and dB value.

Important questions before buying:

  • How big is the room to be cleaned?
  • Do you have pets, allergies or strong odors in the apartment?
  • Do you value app or voice control?
  • Is a particularly quiet night mode important to you?
  • How often do you want to have to change the filter?

Available at Amazon, MediaMarkt, OTTO, Conrad or directly from the manufacturer.

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Philips AC2889/10 Air Purifier Series 2000i

Clean air for your home – automatically, quietly and reliably

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