Estimates of Inhaled and Deposited Doses following Exposure to Humidifier Disinfectant Containing Polyhexamethylene Guanidine (PHMG)

Figure 5

Deposition fractions in each of the five lobes and regions: (a, b) LU (left upper lobe), LL (left lower lobe), RU (right upper lobe), RL (right lower), and RM (right middle lobe); (c, d) head (head airway region), TB (tracheobronchial region), and P (pulmonary region).

(a) Deposition fractions among the five lobes (6.5 ppm)

(b) Deposition fractions among the five lobes (65 ppm)

(c) Deposition fractions according to region (6.5 ppm)

(d) Deposition fractions according to region (65 ppm)