Effectiveness of portable air cleaners in particulate contaminant removal.

The primary objective of this study was to evaluate the effectiveness of different commercially available portable indoor air cleaning technologies in removing dust particulates from the indoor air. Suspended respirable particles are of great concern and often identified as important source of indoor air quality problems. The concentrations of particulate and gaseous pollutants encountered in the indoor environment frequently exceed those found outdoors by factor ranging from 2 to 20.

Chemical warfare at work.

             

Revising the ASHRAE 62 ventilation standard.

                    

Visualizing full-scale ventilation airflows.

                 

Man-made mineral fibres.

                  

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