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

Figure 3

Particle size distributions under various scenarios at an Oxy product concentration of 6.5 ppm during (on) and after (off) humidifier use (head airway region (HA), tracheobronchial region (TB), and alveolar region (AL)).

(a) Adult daily average (on)

(b) Adult sleeping (on)

(c) Child daily average (on)

(d) Child sleeping (on)

(e) Adult daily average (off)

(f) Adult sleeping (off)

(g) Child daily average (off)

(h) Child sleeping (off)