Table 3.2.

Efficiency with DOP for domestic-made polypropylene fibrous media

△P/Pa	20.3	40.6	59.9	116.8	482.6
v/(cm/s)	1.25	2.5	3.5	7.0	13.4
Particle size/μm	Efficiency/%
0.5		–	–	–	99.83
0.4	99.9994	99.995	99.984	99.83	99.59
0.3	99.9991	99.990	99.970	99.71	99.12
0.2	99.9950	99.970	99.920	99.41	98.37
0.15	99.9600	99.870	99.780	98.48	97.78
0.10	99.8800	99.660	99.370	98.62	96.26
0.08	99.8500	99.560	99.270	96.52	95.39
0.05	99.8400	99.400	99.170	95.54	93.80
0.03	99.9700	99.850	99.710	98.52	–