Particle size in outdoor air
02/01/2001
Particles in outdoor air vary depending on location. In ffact, 99.9% of all atmospheric particles are less than 1 micrometer. Particles such as oil smoke, bacterias, viruses are all smaller than 1 micron.
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The dust concentrationis an important parameter in order to evaluate the right air filter solution. The dust concentration can vary from 0.1mg/m3 in a small village to 0.25mg/m3 in a large city.
Source: Camfil