Protection of occupants from exhaled infectious agents and floor material emissions in rooms with personalized and underfloor ventilation

For that study, the performance of two personalized ventilation systems supplying air at the breathing zone have been tested in a full-scale test room in conjunction with underfloor ventilation.Breathing thermal manikins were used for the simulation of occupants. Compared to underfloor ventilation alone, personalized and underfloor ventilation provided excellent protection from any pollution for the occupants.