Air Cleaners Australia

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How big is a Particle in the air?

Ever wondered what particles you might be breathing in? See this list of different particles and their sizes in microns for details. For reference the IQAir HealthPro 250 has cleaning efficiency of .003 microns.

Particle Particle Size(microns)
Anthrax 1 - 5
Antiperspirant 6 - 10
Asbestos(asbestos particles travel in air like ‘javelins’, so filtration is more a function of their

fibre diameter, as opposed to their aerodynamic diameter (tumbling diameter).

0.1 - 10
Atmospheric Dust 0.001 - 40
Auto and Car Emission 1 - 150
Bacteria 0.3 - 60
Beach Sand 100 - 10000
Bone Dust 3 - 300
Bromine 0.1 - 0.7
Burning Wood 0.2 - 3
Calcium Zinc Dust 0.7 - 20
Carbon Black Dust 0.2 - 10
Carbon Dioxide 0.00065
Cayenne Pepper 15 - 1000
Cement Dust 3 - 100
Clay 0.1 - 50
Coal Dust 1 - 100
Coal Flue Gas 0.08 - 0.2
Coffee 5 - 400
Combustion 0.01 - 0.1
Combustion-related - motor vehicles, wood burning, open burning, industrial processes up to 2.5
Copier Toner 0.5 - 15
Corn Starch 0.1 - 0.8
Dot (.) 615
Dust Mites 100 - 300
Eye of a Needle 1230
Face Powder 0.1 - 30
Fertilizer 10 - 1000
Fiberglass Insulation 1 - 1000
Fly Ash 1 - 1000
Gelatin 5 - 90
Ginger 25 - 40
Glass Wool 1000
Grain Dusts 5 - 1000
Ground Limestone 10 - 1000
Hair 5 - 200
Human Hair 40 - 300
Human Hair 60 - 600
Humidifier 0.9 - 3
Insecticide Dusts 0.5 - 10
Iron Dust 4 - 20
Lead 0.1 - 0.7
Lead Dust 2
Liquid Droplets 0.5 - 5
Metallurgical Dust 0.1 - 1000
Metallurgical Fumes 0.1 - 1000
Milled Flour, Milled Corn 1 - 100
Mist 70 - 350
Mold 3 - 12
Mold Spores 10 - 30
Mustard 6 - 10
Oil Smoke 0.03 - 1
One inch 25400
Oxygen 0.0005
Paint Pigments 0.1 - 5
Pesticides & Herbicides 0.001
Pollens 10 - 1000
Radioactive Fallout 0.1 - 10
Red Blood Cells 5 - 10
Rosin Smoke 0.01 - 1
Saw Dust 30 - 600
Sea Salt 0.035 - 0.5
Smoke from Natural Materials 0.01 - 0.1
Smoke from Synthetic Materials 1 - 50
Smoldering or Flaming Cooking Oil 0.03 - 0.9
Spanish Moss Pollen 150 - 750
Spider web 2 - 3
Spores 3 - 40
Starches 3 - 100
Sugars 0.0008 - 0.005
Talcum Dust 0.5 - 50
Tea Dust 8 - 300
Textile Dust 6 - 20
Textile Fibers 10 - 1000
Tobacco Smoke 0.01 - 4
Typical Atmospheric Dust 0.001 to 30
Viruses 0.005 - 0.3
Yeast Cells 1 - 50

If you want to learn more about how IQAir effectively filters out these kind of particles, check out our IQAir Filter Tests page for more information.