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. 2020 Nov 20;3(5):574–589. doi: 10.1016/j.oneear.2020.10.014

Figure 2.

Figure 2

Filtration Mechanisms

(A) Schematic illustration of the single-fiber model. Inertial impaction, interception, and diffusion are collectively known as mechanical filtration mechanisms.

(B) Electrostatic filtration mechanisms for electret filters.

(C) Contribution of each mechanism toward the total filtration efficiency. Note: Only mechanical filtration mechanisms are included here. Refer to Figure 3E for the contribution of electrostatic filtration mechanisms. Adapted from Mukhopadhyay et al.20 with permission.