HMV-V-bank High Capacity Filter ◆High eff. H13: Trapping 99.99% or higher of 0.3μm particles Sub-high eff. H10: Trapping 95% or higher of 0.3μm particles Medium eff. F8: Trapping 80% or higher of 1.0μm particles ◆Adopt special folding machine for manufacturing More info: http://www.hefilter.com/Air-filters/HMV-V-bank-High-Capacity-Filter.shtml