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Emission of particles and airborne germs from humans and/or their personal garments
There have been several studies on the subject of "Human as particle source" and the Dastex Body-Box has proven to be an extremely helpful method to get well-founded results.
The fact that humans are also a very large source of germs has been known for a long time – but this statement refers first and foremost to the germs that have settled directly on humans. How many airborne germs are emitted on average by a person was also examined more closely with the Body-Box. A new measuring device, which uses fluorescence to visualise viable contaminants, was used for this purpose. The values determined in the course of the investigations are certainly a novelty and must now also be classified in comparison to other measuring methods.
As with the surveys on particle emission by humans, it was possible to prove that the degree of movement, the respective garment system and, if necessary, cleanroom suitable undergarments are decisive influencing factors which have a corresponding effect on the number of airborne microbiological contaminants in one direction or the other.
Release of particles (per m³) per minute
| Garments | standing | walking | standing | walking | standing | walking |
| particles ≥ 0,5 µm | particles ≥ 0,5 µm | particles ≥ 1 µm | particles ≥ 1 µm | particles ≥ 5 µm | particles ≥ 5 µm | |
| Cotton jogging suit | 873,304 | 34,955,780 | 657,312 | 25,114,780 | 17,077 | 448,638 |
| Lab coat | 331,742 | 6,304,946 | 130,901 | 2,506,495 | 9,795 | 101,172 |
| Overall | 28,827 | 106,328 | 10,396 | 32,135 | 331 | 851 |