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Frequently Asked Question - Definition of Common Cleanroom Terms
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Particles Generated From Human Beings
Human skin can produce upto 1 x 106 microorganisms
per cm2
Human saliva can contain upto 1 x 109 microorganisms
per ml
Nasal Wash (from healthy person) can obtain 1 x 106
microorganisms per ml
The aerosol produced by sneezing (if no barrier is used) can
contain 100000 microorganisms
Human excrement can contain 1x1012 microorganisms per
g. This figure correspondance to approximately 50% of the dry weight
of the excrement
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