Billeting Any building or portion of a building, regardless of population density, in which 11 or more unaccompanied personnel are routinely housed, including temporary lodging facilities and military family housing permanently converted to unaccompanied housing.

Bioaerosol A collection of airborne biological material including virus, bacterial cells, fungal spores, fragments, and by-products of microbial metabolism.

Building envelope The entire enclosing construction for a building, including walls, windows, doors and other openings, and roof.

Clinical sign (of disease) Objective evidence of disease especially as observed and interpreted by a physician rather than by the patient or a lay observer.

Collective protection A provision of a contaminant-free area in which personnel can function without individual protective equipment, such as a mask and protective garments.

Compartmentalization A division of interior spaces into separate, discrete spaces (see also “Zoning”).

Cost-benefit analysis A technique for project appraisal that weighs the total expected costs against the total expected benefits of one or more actions in order to choose the best or most profitable option.

Cyclone collection or separation A method that uses vortex flow to separate different sized particles.

Detect to treat Provide information in the time frame needed to initiate treatment options to minimize adverse health effects from exposure.

Detect to warn Provide information to initiate a response action that minimizes exposure.



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