Air Filter Performance Levels and Designations: IEST-RP-CC001.319 classifies filter performance levels as: Type A Filter Performance. Sometimes referred to as industrial types,

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Air Filters - General - Air filtration or Air Filters are used and design into gas/air flow systems to remove particulates from the air flow to what is termed as "air conditioning." 

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Filtration Filter Knowledge Menu - Activated Carbon, Air Fitlers, Bag Filters, Corrosion considerations, HEPA Filter design application and construction, High Temperature Filter, Liquid filtering, Membrane Filters, Stainless Steel Filters...

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