1.ClassaaASHRAE, HEPA & ULPA: H10-H14aaU15-U17 Class:ASHRAE, HEPA & ULPA: H10-H14,U15-U17 Frame:Aluminum Frame,Galvanized Frame, MDF Frame , ABS plastic Frame and Stainless steel frameFilter Media:Synthetic Fiber and Glass Fiber Common Applications:Filtering 0.3 microns less suspended particles in the air,it is widely used in the end filtration of the civil or industrial cleaner places requiring ...