“The size of airborne particles carrying micro-organisms are in the order of a few micrometers”
Noble, W. C., Lidwell, O. M. & Kingston, D. (1963)
This article by Noble et al investigated the size distribution of particles carrying different species of bacteria and fungi. Particles were collected with an air sampler which divided the collected particles into four size ranges and deposits the airborne particles onto a Petri dish containing the agar medium. The article summarizes that organisms associated with human disease or carriage are usually found on particles in the range 4-20 μm equivalent diameter. The equivalent particle diameter is here referred to the diameter of a sphere of unit density which has a settling rate in air equal to that of the particle in question.
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An extensive list of all scientific literature – in total 45 pieces – that supports Opragon is available on request using the download button below.
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