OPADC Professionals are certified, qualified and trained professionals who use proprietary techniques to clean, recondition and restore heating, ventilation and air conditioning (HVAC) systems. OPADC professionals are industry-leading advocates for applying stringent indoor air quality (IAQ) standards to HVAC systems. Through superior air duct cleaning and HVAC restoration, we improve IAQ by helping to bring HVAC systems back to their peak efficiency, leaving our customers with cleaner air to breathe. more... See more text