Determination of Particulate Matter in Dental Clinics: The Effectiveness of Different Air Purifiers and the Central Ventilation System

Figure 1

Sketch of the dental clinic indicating the position of the air purifiers and the measurement instrumentation. The orange circles indicate the position of the patients. (a) 1st cycle of measurements (without central ventilation system) and (b) 2nd cycle of measurements (with central ventilation system).

(a)

(b)