2026.009.0

COMPARATIVE TECHNICAL EVALUATION OF CANOPY HOODS, SNORKELS, AND CHEMICAL FUME HOODS IN LABORATORY ENVIRONMENTS

Local exhaust ventilation systems are widely used in laboratories, pilot plants, food processing facilities, and industrial environments to remove airborne contaminants. Selecting the proper exhaust system is critical because inadequate ventilation can create personnel exposure risks, poor indoor air quality, and excessive operating costs (ASHRAE, 2023).

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