Figure 5.

Filtration efficiency using different parameters during electrospinning with a 25 wt.% PET solution. The noise to signal ratio of the curves increases from 0.6 µm because the equipment used is not designed to analyze coarse particles. Particle concentration >0.6 µm (∼1 × 10${}^5$ particles/cm${}^3$) is reduced compared to that of particles between 0.1 and 0.6 µm (∼2.5 × 10${}^5$–7 × 10${}^5$ particles/cm${}^3$).