Particle Contaminates Size Guide

Particle Sizes of Airborne Atmospheric Contaminates Guide

Contaminate
Approx. Particle Size Range (Microns)
Alkali Flumes
0.1-5
Bacteria
0.1-3
Carbon Black
0.3-30
Cement Dust
0.01-3
Coal Dust
3-100
Colloidal Silica
1-100
Combustion Nuclei
0.02-0.05
Contact Sulfuryl Mist
0.01-0.1
Dust (Inside)
0.3-3
Dust Mites
0.001-2
Dust Mites Waste Product
100-300
Fly Ash
10-40
Fumes
1-100
Fungi
0.001-1
Ground Limestone
1-5
Ground Talc
10-1000
Human Hair
0.5-50
Insecticide Dust
30-100
Lint
0.5-10
Lung Damaging Dust
10-100
Contaminate
Approx. Particle Size Range (Microns)
Metallurgical Dust
0.5-5
Milled Flour
0.001-100
Mould Spores
1-70
Nebuliser Drops
0.3-30
Oil Mist
1-20
Oil Smoke
0.05-100
Paint Pigments
0.03-1
Particles of Incomplete Combustion
0.1-5
Pneumatic Nozzle Drops
0.1-4
Pollen
10-100
Protozoa
8-20
Ropsin Smoke
0.01-1
Sea Salt Nuclei
0.03-0.5
Spray Dried Milk
0.1-10
Sulfuric Concentrator Mist
1-15
Tobacco Smoke
0.01-1
Viruses
0.003-0.05
Welding/ Soldering Fumes
0.01-3
Lung Damaging Dust
0.01-3

Micron / Micrometer = 1/25,000 inch;
e.g. 50 microns equal to the size of a sharp pencil dot. Microns that are visible to the naked eye are larger then >10 microns.

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