Dimension: the depth of the filters are 46mm and 96mm, with corresponding nominal depth of "2" and "4"
Preferable height and width are 595mm and the corresponding nominal diemnsion is "24" typical use of ABY broad filter:
1, pre-filtering of air-condition and ventilation systems;
2, pre-filtering of large air compressors;
3, Returning-wind filtering of clean room;
4, pre-filtering of partial hing-efficiency filtering devices whose some special parts need to be filterred with high efficiency.

The filtering efficiency of ABY is G3 and the filters with this efficiency is not only usually used in the one-stage filtering for air-condition and ventilation systems but also used in air-condition and ventilation systems that only needs the one-stage filtering.