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Air purifier reviews

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Last updated: 23 April 2021


Checked for accuracy by our qualified fact-checkers and verifiers. Find out more about fact-checking at CHOICE.

Air purifiers are becoming more common in homes as people look for ways to keep their indoor air clear of dust, smoke, pollen, chemicals and germs. Our industry experts comprehensively lab test and review leading air purifier brands like Dyson, Philips and Winix to help you find the best performers on the market.

We test models with a variety of designs and technologies but it all comes down to how well they remove pollutants from the air and how easy they are to use. Our test results show you which air purifiers are:

  • best for dust removal
  • best for smoke removal
  • best for removing volatile organic compounds (VOCs)
  • the most energy efficient
  • the quietest
  • the easiest to use.

We've also looked into whether an air purifier can trap viruses and bacteria, though we haven't actually tested that.

This review updates the review we published in 2020. Since then, we've tested more models and improved our test method further. Due to the changed test method, some scores of models from the last review have been updated.

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Note that we also aren't currently able to test for pollen removal due to technical challenges. We aim to include pollen removal in future tests. Meanwhile, any model that's good at dust and smoke removal should also be effective against pollen.

Our interactive comparison tool helps you find out which brands perform the best at cleaning indoor air, and which ones have the features you want. Our Recommended list will help you quickly see which models come out on top.

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List of brands we tested in this review.


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    Typical retail price at time of publication.

    enter value/s in increments of 1 between 179 and 1595

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    HEPA filter

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    High Efficiency Particulate Air (HEPA) – capable of trapping extremely small particles of dust, smoke and even bacteria and viruses. These filters need to be periodically replaced.

      Charcoal filter

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      Charcoal or carbon filters are said to be good for trapping odours and VOCs such as formaldehyde. These can usually be washed and reused but may need to be replaced eventually.

        Pre filter

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        A coarse filter to catch big dust particles and pet hair so that they don't clog the HEPA and other filters. These can usually be washed and reused but may need to be replaced eventually.

          Ionisation filter

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          Generates charged particles (ions) to remove pollutant particles and microbes from the air. These filters need to be periodically replaced. Ionisation of air can produce small amounts of ozone which is a breathing irritant.

            UV sterilisation

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            UV light can be used to kill bacteria and viruses trapped by the purifier. We haven't tested this feature.

              Included in this review

              Members-only access
              • Buy now
              • Replacement filter cost
              • Annual replacement filter cost
              • Recommended
              • Overall score
              • Performance score
              • Dust performance score
              • Smoke performance score
              • VOC performance score
              • Ease of use score
              • Comparative energy efficiency
              • Noise on high setting
              • Noise on low setting
              • Origin
              • Good points
              • Bad points
              • Brand
              • Availability
              • Model
              • Price
              • HEPA filter
              • Pre filter
              • Charcoal filter
              • Ionisation filter
              • UV sterilisation
              • Ozone generation
              • HEPA charcoal filter change interval
              • Remote control
              • Wifi app
              • Fan settings
              • Timer
              • Claimed CADR dust removal (m3/hr)
              • Claimed bacteria and virus removal
              • Dimensions (H x W x D, cm)
              • Weight kg
              • Contact


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