An HVAC Technician installs, maintains, and repairs heating, ventilation, and air conditioning systems, essential for maintaining indoor comfort and air quality. Key responsibilities include diagnosing issues, conducting routine maintenance, and ensuring compliance with safety regulations. Required skills include technical proficiency, problem-solving, and customer service. Working in residential, commercial, or industrial settings, technicians often collaborate with engineers and project managers. Advancement opportunities include supervisory roles or specialization in energy efficiency or refrigeration technology.