How does increasing air velocity aid in gas control?

Increasing air velocity aids in gas control primarily by diluting gas and mixing it with air. When the air velocity is increased, it facilitates a more rapid and effective dispersion of gases in the environment. This enhanced mixing reduces the concentration of harmful or flammable gases by allowing them to combine with surrounding air, thus lowering the risks associated with gas accumulation.

This dilution is crucial in various settings, such as labs or industrial environments, where the presence of potentially hazardous gases needs to be managed to ensure safety and maintain air quality. By increasing the airflow effectively, harmful gases can be more quickly neutralized in terms of their concentration in the air, making the environment safer for operators and equipment.

The other options presented do not primarily focus on the dilution and mixing effect, illustrating that while they may have some relevance to air movement, they do not capture the primary function of increased air velocity in the context of gas control.