Certified Safety Professional Exam 2026 – 400 Free Practice Questions to Pass the Exam

Dilution ventilation is specifically designed to reduce the concentration of airborne contaminants within a space by mixing contaminated air with clean, fresh air. This type of ventilation works on the principle of allowing a larger volume of clean air to circulate, which subsequently decreases the level of pollutants to safe concentrations.

This system is particularly effective in environments where contaminants are present but not necessarily concentrated in specific areas. By ensuring a continuous flow of air, dilution ventilation helps to maintain air quality and comply with occupational safety standards.

While general ventilation also refers to the process of supplying and removing air in a space, it does not necessarily focus on the specific need to dilute contaminants as effectively as dilution ventilation does. Local exhaust ventilation is more targeted and aims to capture and remove contaminants at their source rather than diluting them throughout the space. Mixed ventilation combines both general and local strategies but does not distinctly aim at dilution alone in the same way that dilution ventilation does.