An instrument designed to visually indicate the direction and velocity of gaseous movement by introducing a controlled stream of visible aerosol is described. This device is frequently employed in evaluating the performance of ventilation systems, identifying sources of drafts, and visualizing airflow patterns within enclosed spaces. For instance, it can demonstrate the effectiveness of a fume hood in capturing hazardous vapors or pinpoint areas of poor air circulation in a cleanroom environment.
The utilization of such a testing method offers numerous advantages. It allows for quick and relatively inexpensive assessment of air movement characteristics, aiding in optimizing system design and troubleshooting potential issues. Historically, rudimentary methods involving smoke plumes were used for similar purposes, but modern devices provide greater control and accuracy in generating and directing the visible tracer. These improvements contribute to more reliable data collection and analysis.
