​This course addresses indoor environmental quality (IEQ) problems and mitigation approaches. The course examines major sources, commonly identified pollutants and factors determining pollutant concentration in indoor environments. The course also will assess the overall impact of HVAC&R systems on the global environment and means of mitigating their adverse effects. It also assesses the linkage between refrigerants and energy efficiency, cost-effectiveness, safety and other factors. Also, good practice principals during installation, operation and maintenance of HVAC systems will be covered.