Fig. 3From: Effect of forceful suction and air disinfection machines on aerosol removalRemoval efficiency for the 0.3 μm aerosol aerosol particles with forceful suction and air disinfection machines at 4, 8, 12, 16, 26 and 32 min after aerosol generations in dental treatment rooms with various mechanical ventilation rates measured by air change per hour (ACH).Back to article page