BioRem Inc., a clean technology engineering company, designs, manufactures, distributes, and sells air pollution control systems that are used to eliminate odors, volatile organic compounds (VOCs), and hazardous air pollutants (HAPs). It offers biofilters for the removal of odors, H2S, VOCs, and HAPs; and biotrickling filters for applications of high levels of H2S or other water-soluble VOCs. The company also provides multi-stage systems to remove odors from various municipal/urban wastewater treatment processes; biogas desulfurization systems; dry scrubber adsorption systems; and cannabis odor control systems. In addition, it offers biological processes and testing services; media sampling and analysis; system review and inspections; and media replacements and spare parts. The company operates in Canada, the United States, China, and internationally. BioRem Inc. was founded in 1990 and is headquartered in Puslinch, Canada.