Model  | Size (mm)  | CMH  | I.N.P (Pa)  | F.N.P (Pa)  | Filter object (μm)  | EFF. (%)  | Filtration Class  | 
RT-ZKC7725  | 595*595*25  | 1700/3400  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC5525  | 495*495*25  | 1200/2400  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC1725  | 295*595*25  | 850/1700  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC7746  | 595*595*46  | 1700/3400  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC5546  | 495*495*46  | 1200/2400  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC1746  | 295*595*46  | 850/1700  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC7796  | 595*595*96  | 1700/3400  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC5596  | 495*495*96  | 1200/2400  | <35/75  | <250  | ≥5  | 95%  | G4  | 
RT-ZKC1796  | 295*595*96  | 850/1700  | <35/75  | <250  | ≥5  | 95%  | G4  | 
| Remark: customized specification is acceptable. | |||||||