Air pollution: Air pollution refers to the presence of harmful substances or particles in the air that can negatively impact human health, ecosystems, and climate. It includes pollutants such as VOCs, nitrogen oxides, particulate matter, and sulfur dioxide.
Indoor air quality: Indoor air quality refers to the quality of air inside buildings or enclosed spaces. It is influenced by factors such as ventilation rate, presence of pollutants (including VOCs), temperature, humidity levels, and occupant activities.
Off-gassing: Off-gassing is the release of gases or volatile chemicals from materials or products into the surrounding environment over time. Common sources include new furniture, carpets, paint, adhesives, and cleaning products.