Air Cleaners Australia

air purifiers and filter specialists

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How big is a Particle in the air?

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