Which product is likely to have the highest concentration of VOCs?

The highest concentration of volatile organic compounds (VOCs) is typically found in newly painted rooms. When paint is applied, it releases VOCs into the air as it dries, which can persist for an extended period depending on factors like ventilation and the type of paint used. Many paints, particularly oil-based varieties, contain high levels of VOCs that can contribute to both indoor air pollution and potential health issues during and after application.

In contrast, open-air outdoor plants and a well-ventilated room would have lower concentrations of VOCs due to the presence of natural air circulation and the dilution effect that occurs outdoors. Rooms with old furniture may emit some VOCs as well, especially if the furnishings are made from materials that contain these compounds, but they generally do not release VOCs at the same elevated levels as freshly painted surfaces. Thus, the specific process of applying new paint is what leads to the significant release of VOCs, making newly painted rooms the correct choice.