In homes that are older, why is better circulation particularly important?

In older homes, better circulation is particularly important because they may emit more fumes from materials used in construction and furnishings. Many older homes contain materials such as lead paint, asbestos, or formaldehyde in their insulation and cabinetry, which can become more hazardous when proper ventilation is lacking. Additionally, older homes may use outdated heating systems that can also contribute to air quality issues. Effective air circulation helps to reduce the concentration of these harmful substances, promoting healthier indoor air quality for occupants. Ensuring good airflow can mitigate the risks associated with these fumes, making it essential for maintaining a safe and livable environment in older properties.