Assessing Modeled CO₂ Retention and Rebreathing of a Facemask Designed for Efficient Delivery of Aerosols to Infants

Figure 6

CO₂ concentration map representing different stages of the first respiratory cycle (distressed breathing pattern). This figure is the same as Figure 5 except that the respiratory cycle takes half as long because the respiratory rate is modeled at 120/min. The individual figures represent the same divisions within the respiratory cycle as in Figure 5. (a) 𝑡=0.005 sec; (b) 𝑡=0.125 sec; (c) 𝑡=0.25 sec; (d) 𝑡=0.375 sec; (e) 𝑡=0.5 sec.

(a)

(b)

(c)

(d)

(e)