Standard Capacity HEPA Filters
HEPA filters are used in critical application requiring high efficiency filtration. A typical standard capacity HEPA filter in a 24x24x12 size is rated for 1,000 cfm at an initial resistance of 1.0" w.g. The HEPA can have an efficiency of 99.97% or 99.99% of 0.3 micron sized particles. The filter is available in either a 6" or 12" depth and with either wood or metal casings. Each filter is tested and labeled with test data.

High Capacity HEPA Filters
High capacity HEPA filters can handle higher air volumes while maintaining a 99.99% HEPA efficiency. A V-Style filter can handle 2,400 cfm at an initial resistance of 1.0" w.g. The separatorless configuration filter contains 430 sq.ft. of media. Their 24x24x12 filter can handle 2,000 cfm at an initial resistance of 1.40" w.g.