How you Can Improve Indoor Air Quality of your Home? To determine the level of contaminants in indoor air which affect the productivity of occupant’s indoor air quality monitoring or testing is an essential process. Good air quality increases workers' comfort and wellbeing by using indoor air quality equipment. To identify issues with air quality regular indoor air quality testing is important. Poor air quality can expose pollutants, allergens, and bacteria. Air quality services are affected by temperature, humidity, ventilation, and chemical contaminants.