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

Figure 6

Deposition fraction (right -axis) and deposited mass per unit surface area (left -axis) at each generation of the lung according to age. -axis: generation number of the respiratory tract (conducting zones (1–16) and transitional and respiratory zones (16–26)).

(a) 3 months

(b) 21 months

(c) 23 months

(d) 28 months

(e) 3 years

(f) 8 years

(g) 9 years

(h) 14 years

(i) 18 years

(j) 21 years