Feature:
1)Effcinecy ratio:99.99% 
2) Dust purification capability: ≥5μm
3)Frame: galvanized steel plate, stainless steel plate, aluminum alloy plate,or 18mm normal plywood
4)Filter material: polyester /glass fiber
5)Sealant: polyurethane
6)Separator: aluminum foil or pleated paper clapboard
7)4mm net space betweem pleated paper and aluminum foil,it is easy for the airflow go through, strengthen the purification capability,and the utilization rate of the materials
8)The highest working temperature is 80℃.And the max humidity is 80%
9)Low resistance to airflow  High dust holding capacity  Uniform distribution of airflow
10)All the sizes available as per requirements