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Home / Newsroom / How big is a Particle in the air?

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.

ParticleParticle Size(microns)
Anthrax1 - 5
Antiperspirant6 - 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 Dust0.001 - 40
Auto and Car Emission1 - 150
Bacteria0.3 - 60
Beach Sand100 - 10000
Bone Dust3 - 300
Bromine0.1 - 0.7
Burning Wood0.2 - 3
Calcium Zinc Dust0.7 - 20
Carbon Black Dust0.2 - 10
Carbon Dioxide0.00065
Cayenne Pepper15 - 1000
Cement Dust3 - 100
Clay0.1 - 50
Coal Dust1 - 100
Coal Flue Gas0.08 - 0.2
Coffee5 - 400
Combustion0.01 - 0.1
Combustion-related - motor vehicles, wood burning, open burning, industrial processesup to 2.5
Copier Toner0.5 - 15
Corn Starch0.1 - 0.8
Dot (.)615
Dust Mites100 - 300
Eye of a Needle1230
Face Powder0.1 - 30
Fertilizer10 - 1000
Fiberglass Insulation1 - 1000
Fly Ash1 - 1000
Gelatin5 - 90
Ginger25 - 40
Glass Wool1000
Grain Dusts5 - 1000
Ground Limestone10 - 1000
Hair5 - 200
Human Hair40 - 300
Human Hair60 - 600
Humidifier0.9 - 3
Insecticide Dusts0.5 - 10
Iron Dust4 - 20
Lead0.1 - 0.7
Lead Dust2
Liquid Droplets0.5 - 5
Metallurgical Dust0.1 - 1000
Metallurgical Fumes0.1 - 1000
Milled Flour, Milled Corn1 - 100
Mist70 - 350
Mold3 - 12
Mold Spores10 - 30
Mustard6 - 10
Oil Smoke0.03 - 1
One inch25400
Oxygen0.0005
Paint Pigments0.1 - 5
Pesticides & Herbicides0.001
Pollens10 - 1000
Radioactive Fallout0.1 - 10
Red Blood Cells5 - 10
Rosin Smoke0.01 - 1
Saw Dust30 - 600
Sea Salt0.035 - 0.5
Smoke from Natural Materials0.01 - 0.1
Smoke from Synthetic Materials1 - 50
Smoldering or Flaming Cooking Oil0.03 - 0.9
Spanish Moss Pollen150 - 750
Spider web2 - 3
Spores3 - 40
Starches3 - 100
Sugars0.0008 - 0.005
Talcum Dust0.5 - 50
Tea Dust8 - 300
Textile Dust6 - 20
Textile Fibers10 - 1000
Tobacco Smoke0.01 - 4
Typical Atmospheric Dust0.001 to 30
Viruses0.005 - 0.3
Yeast Cells1 - 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.

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