Fig. 3
From: Mitigating saliva aerosol contamination in a dental school clinic
Aerosol generated at different locations in the operatory using an US + SE + HSS with or without HVS. a Positions of dentist, assistant, and patient during the dental procedure. The scheme corresponds to top and side views. Aerosol level was measured at total 4 locations. b Concentration of aerosol particles measured at different locations. US + SE + HSS without HVS (black bars) and with HVS (pink bars). The green bands correspond to the base line range measured before each experiment