Vehicle Interior Air Quality (VIAQ)

Vehicle interior air quality (VIAQ) describes the air inside a vehicle cabin during use, including pollutants released by materials and pollutants entering through ventilation. Temperature, time, airflow and filtration can change measured concentrations; odour is not a test result, filters address only selected contaminants, and vehicle-level and material-level methods answer different questions; see Interior Materials, Air Quality, and Circularity.

Related terms

• Cabin Air Filter, Activated Carbon Filter, and HEPA Filter
• Cabin-Air Recirculation

Sources

• UNECE — Mutual Resolution No. 3 on Vehicle Interior Air Quality
• ISO 12219-1:2021 — Whole-vehicle test chamber method for cabin VOCs