I performed an IAQ (Indoor Air Quality) test for a homeowner concerned about allergens in the air. Using a particle counter and VOC sensor, I measured dust, pollen, and other airborne contaminants. After reviewing the data, I recommended installing a whole-home air purifier integrated with their existing HVAC system. Additionally, I checked the humidity levels in the ductwork and suggested the addition of a humidifier for optimal indoor comfort. The homeowner is now considering these upgrades for better air quality and overall health.