High Efficiency Filter usually used clearer central air conditioner system and blown the pipeline,its frame can be made from galvanized sheet metal,stainless steel and aluminum alloy,so the Sturdy structure and good performance is fit in any install environment.Special hot melt separators ensure uniform airflow throughout the filter pack with minimum resistance to airflow and uniform spaced pleats ensures maximum utilization of the media resulting in large dust holding capacity utilization of the media resulting in large dust holding capacity