·Large filter area
·Low initial resistance
·large dust holding capacity
·Economical and practical

Application: Filter dust , pre-filter through air filter program
Type: synthetic fiber foldaway filter
Frame: aluminum, paper or galvanized
Media: synthetic fiber
Protect mesh: aluminum net or stainless steel net
EN779 class:G2, G3, G4, F5
Average arrestance:84%-90%（ASHRAE52.1-1992）
EUROVENT4/5 class: EU3, EU4, EU5
DIN53438 Non-flammability Standard: F1
Final resistance: (suggest) 200Pa-250Pa
Max. air flow: 125% of the rated air flow
Temp. resistance: 100℃
Humidity:100%