Have Cleaner Air with the Samsung Air Purifier

Last Update date : Jul 29. 2021
Air purifer in a stylish room with large window looking out at tress.

Information Icon Please Note: The information on this page is for Australian products only. Models, sequences, error codes or settings will vary depending on location and/or where the product had been purchased. To be redirected to your local support page please click here.

All Samsung Air Purifiers come with a 4-Colour Light Indicator which automatically changes colour to reflect the quality of your air. With a glance, you'll know whether your air quality is good, moderate, unhealthy or bad.

The AX5500 and AX7500 models also come with an intuitive Numeric Air Quality Display, which allows you to see the exact levels of Gas Purity and Fine Dust Concentration in your air.

What does 'PM' stand for?

PM stands for “Particulate Matter.” It’s a standard created by the EPA (Environmental Protection Agency) and refers to the size of particles, measured in micrometers. The PM Concentration Level is an approximate measurement of how many particles of that size are in a cubic meter. There are three different PM sizes displayed on the Air Purifier. Here's what they stand for:

  • PM10: Particles in the air that are about 1/5 of the diameter of a human hair.
  • PM2.5: Particles in the air that are about 1/20 of the diameter of a human hair.
  • PM1.0: Particles in the air that are about 1/50 of the diameter of a human hair.

Although your air purifier will filter larger particles from the air, these are the only sizes that are measured, along with gas pollution.

When you want to know about the air quality in your home, you can check these different levels:

AX5500K & AX7500K Air Purifiers

You can review the current air quality from the display panel with the colour (reflecting the PM10 / PM2.5 / PM1.0 / gas pollution) and the concentration level indicators.

  • By default, the colour and PM10 / PM2.5 / PM1.0 level indicators reflect the PM10 concentration.
  • Each time you press the Air qualityAir Quality button  button, the current state is displayed in the order of PM10 → PM2.5 → PM1.0.
    The PM2.5 and PM1.0 levels are displayed for 10 seconds, before automatically changes to the PM10 level.
    The air quality will be ‘Very Poor’ when the PM2.5 / PM1.0 levels are worse than the PM10 level.
    – If the concentration levels are same for all PM groups, the indicator will reflect the PM10 level.
  • PM10, PM2.5 and PM1.0 measurement will be displayed in numbers 05 – 999.
  • Air quality levels
Air Quality Indicator Table


Very Poor (Red)

• PM10: 151 and over
• PM2.5/PM1.0: 76 and over
• Gas pollution level: 4

Poor (Yellow)

• PM10: 81 - 150
• PM2.5/PM1.0: 36 - 75
• Gas pollution level: 3

Moderate (Green)

• PM10: 31 - 80
• PM2.5/PM1.0: 16 - 35
• Gas pollution level: 2

Good (Blue)

• PM10: 30 and below
• PM2.5/PM1.0: 15 and below
• Gas pollution level: 1

Stage of Air Quality.

AX40T3030 & AX34T3020 Air Purifier

The air quality indicator has four levels, from Blue – Good through to Red – Bad, to indicate the level of dust / gas within the air at a glance.

Air quality level.
AX40T3030 & AX34T3020 Air Purifier


  • The dust concentration may vary depending on the environmental conditions (for example, when the product is near a construction site, road, fabric sofa, when a vacuum cleaner is used or bedding and clothes are arranged near the product, etc.).
  • The following conditions may cause temporarily high readings of PM level:
     When the product is used near fur rugs or used in vets, clothes stores, or other places prone to high humidity, smoke or infestation.
     When humidifiers, electric pressure cookers, sprayers and such are being used in the same room
     When the product is used where there is an inflow of outside air with dust or other types of air pollution (e.g. proximity to the building’s HVAC or ventilation systems, or loose window frames)
  • The gas pollution reading can be affected by odorous household items such as air fresheners, deodorants and detergents.
  • If you are using more than one air purifier in the same room, the dust concentration reading on each unit may not be the same as they affect air circulation. The dust concentration reading may vary depending on the sensor or product being used.
  • If there is no change in the intensity of gas (odour), it may not be reflected in the gas pollution reading even though you can clearly smell it.
  • PM levels on the display may differ from the official forecasts.
  • Nearby electromagnetic waves or electrical noises may cause temporarily high readings of PM level.

Please refer to our User Manual and Guides to confirm if this function is available on your Samsung Air Purifier.

For further support, please contact us on 1300 362 603 or reach out to us via Chat Support.

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