MEASURING AIRBORNE GERMS PRODUCED BY HUMANS INSIDE A BODY BOX

摘要

It is well established that humans are the biggest source of contamination in cleanrooms, irrespective of whether that contamination arises from airborne particles or is microbiological. The key function of cleanroom garments, therefore, is to protect clean processes from the contamination from personnel and their clothing. Their effectiveness in doing this has been shown in a very extensive study carried out in 2010 using a particle counter in a 'Body Box'. Another recent study looked at how the average particle release per minute of an employee varied based on the garment being worn and the movement being performed, the results of which are summarised in Table 1.