I conducted indoor air quality testing for a homeowner concerned about pollutants. Using an air quality meter, I measured levels of particulate matter (PM2.5), volatile organic compounds (VOCs), and carbon dioxide (CO2). After identifying elevated VOC levels, I recommended an air purification system. I also checked the air filters in the HVAC system and advised regular replacements to maintain clean indoor air. The data from the tests provided a comprehensive picture of the home’s air quality, ensuring the homeowner could take steps to improve it.