Which of the following pollutants require ventilation to escape from homes?

Indoor chemical pollutants encompass a variety of substances such as volatile organic compounds (VOCs), formaldehyde, and other airborne irritants and toxins that can be emitted from household products, building materials, and cleaning agents. Proper ventilation is essential for mitigating their concentration indoors, as it helps to dilute and disperse these pollutants, allowing fresh air to circulate and replace the contaminated air. This is crucial in maintaining indoor air quality, reducing health risks, and promoting a safer living environment.

While dust particles, pet dander, and mold spores can contribute to indoor air quality issues, they do not require ventilation in the same way that chemical pollutants do to be effectively managed. For instance, dust and pet dander can be reduced through regular cleaning and maintenance rather than relying solely on ventilation. Similarly, mold spores often indicate a moisture problem that needs to be addressed directly. However, preventing the buildup of indoor chemical pollutants specifically relies on ensuring adequate airflow and exchange of indoor and outdoor air.