The NAFA Technical Seminar is an annual in-person education event hosted by the National Air Filtration Association (NAFA), a non-profit trade association that brings together air filter and component manufacturers, sales and service companies, and HVAC and indoor air quality companies with a global membership. The seminar features presentations on air filtration and indoor air quality, and attendees can earn continuing education units (CEUs) toward NAFA professional certifications such as the Certified Air Filter Specialist (CAFS). Programming includes optional pre-seminar events such as certification testing and sponsored social events.