Influence of ventilation systems on aerosol and vapour concentration in the kitchen.

During the experiments and under the experimental conditions, displacement ventilation with air outlets close to floor level were found to produce the lowest concentrations of hazardous substances and aerosols in the working areas of kitchen appliances when compared with mixed or displacement ventilation through ceiling outlets. Displacement ventilation with low-induction ceiling outlets achieved better results than mixed ventilation. Since the experimental setup had been selected specifically for its closeness to practical conditions, it can be expected that arrangement of appliances and, consequently, any additional space requirement must be taken into account in practical scenarios.