This lesson explains how HVAC workers can stay safe when using chemicals. HVAC jobs often involve chemicals like refrigerants and cleaning agents, which can be harmful if not handled the right way. You’ll learn how to read labels, use protective equipment, and store chemicals safely. The lesson a...

This lesson explains how HVAC workers can improve air quality and keep buildings safe. Good ventilation removes harmful particles and brings in fresh air. You’ll learn about the importance of filters, vents, and airflow for both comfort and health. The lesson also covers how poor air quality can ...