Below is a list of Pollution Control Equipment manufacturers from St. Constant, Quebec. Pollution control equipment removes and eliminates a wide variety of pollutants, known as volatile organic compounds (VOCs) and hazardous air pollutants (HAPs), including sulfuric fumes, gases, odors and vapors from the atmosphere. VOCs and HAPs cause serious environmental and biological damage resulting in smog, acid rain, carbon emissions and global warming, but they are reduced or eliminated by air pollution control equipment.