People spend over 90% of their time indoors where air pollution levels are much higher than outdoors. Asthma rates in children under 5 have increased 160% in recent years. Volatile organic compounds (VOCs) found in chemical pollutants can trigger health issues like headaches, asthma, and allergies. The high costs of asthma include $11.5 billion in direct healthcare costs and $4.6 billion in indirect costs like lost productivity each year. Source control is the best way to reduce indoor air pollution and limit chemical exposure.