This course provides essential information on High Efficiency Particulate Air (HEPA) filters, which are essential components in air handling and ventilation systems designed to improve indoor air quality (IAQ) by trapping a significant amount of very small particles to remove harmful pollutants and allergens from the air we breathe. The course covers important information regarding types of filters, filter standards, filtering principles, testing, and maintenance procedures. Participants will learn guidelines and recommendations to ensure filters are properly installed and maintained, with special focus on critical environment applications, including clean rooms and pharmaceutical process rooms. Upon completion, learners will have the knowledge needed to effectively select, implement, and maintain HEPA filtration systems across various applications.