The passing of air through a column of water results in streams of bubbles rising through the chamber. Such a device has been used in science and industry, as a filtration mechanism to remove pollution particulates and gases from exhaust streams. Models of the individual processes inherent in the device have been developed over time. However, there are problems when attempting to match these theoretical results with the observations from experimental work that measures the efficiency of removal of the pollutants. There are some inconsistencies in determining the best operating conditions for the bubble chambers. For example, even researchers from the same research facility have provided inconsistent advice on the ideal operating conditions.