The dilution ventilation system market was valued at USD 1,756.9 million in 2025 and is forecast to register a 5.9% CAGR between 2026 and 2036. In 2026, direct OEM holds 42.0% of sales channel demand, manufacturing plants represent 40.0% of end use sales and 10,000-50,000 cfm accounts for 44.5%.