Grades	G3	G4	F5	F6	F7	F8/F9
Model No.	T-350	NGB-290	ZF-45	ZF-65	ZF-85	ZF-95
Average Arrestance (EN779)	87.2%	92%	97.4%	99%	99.3%	99.1%
Average efficiency (dust spot)	20%	20%	50%	76%	81.3%	91.5%
Rated Air Flow (m3/hr)	4250	4250	4250	4250	4250	4250
Initial pressure drop (Pa)	30	40	45	60	123	126
Final pressure drop (Pa)	250	250	450	450	450	450
Dust holding capacity (g/m2)	562.4	487	263.1	859	595.9	6244
Temp Resistant (degree C)	100	100	100	100	100	100
Flammability (DIN 53438)	F1	F1	F1	F1	F1	F1