Paper frame type initial filter
Effect at the beginning of the paper box filter is using acupuncture three-dimensional filter cotton, three-dimensional pore forming, has excellent permeability, frame the paper frame or aluminum frame, filtering surface using planar filter, also can be folded into wavy, thus greatly with the filter area, is six times that of the planar filter, and long life, small resistance. Mainly used in central air conditioning, dust-free workshop, industrial ventilation system front end filtering. To intercept larger solids in the air.
