The Pollution Prevention Institute (PPI) is an agency within Engineering Extension at Kansas State University. PPI provides confidential, technical, environmental pollution prevention and compliance assistance to businesses and institutions. PPI also operates the Kansas Small Business Environmental Assistance Program (SBEAP). SBEAP is an air-focused assistance program mainly serving Kansas small businesses. SBEAP is funded by the Kansas Department of Health and Environment (KDHE).

PPI also provides resources for environmental management systems (EMS) development, energy efficiency, and other assistance to communities, hospitals, colleges, and large businesses.