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American Air Filter International
American Air Filter International




Semiconductor Manufacturer Improves Efficiency with ePTFE ULPA Filter

Discover how AAF improved efficiency for a manufacturing facility. 

The Filtration Situation

A global semiconductor company needed to improve energy efficiency in one of its newest manufacturing facilities in the U.S. In particular, the customer focused on a new fab with 5,800 4'x4' fan filter units (FFUs) with glass media filters installed. Within other cleanrooms in similar facilities supporting wafer manufacturing, the traditional glass media drove energy costs up due to its relatively high-pressure drop. Additionally, it was prone to damage during filter installation, maintenance, changeouts and storage.

The AAF Solution

To achieve the required energy savings in the new fab, AAF recommended:

  • MEGAcel II ePTFE ULPA filters, which have only about half the resistance of glass media filters and offer superior durability.


AAF became involved through the general contractor overseeing the project, whose primary mission was to supply a more energy-efficient alternative at a competitive price. For the customer to fully understand the value that the MEGAcel II ePTFE ULPA membrane media filters provide, it was imperative that AAF work with them directly. AAF presented a total cost of ownership (TCO) summary to the customer to demonstrate the long-term energy, labor and material cost savings achieved by switching to membrane media ULPA filters. After reviewing the side-by-side comparison of glass vs. membrane ULPA filters, the customer purchased 5,800 MEGAcel II ePTFE ULPA filters for the facility.

The Results

Installation of all MEGAcel II ePTFE ULPA filters was completed in February 2022. Energy cost savings for this project are anticipated to be $1.3M over a five-year period. Additionally, whereas other facilities in their portfolio had been keeping hundreds of glass media filters in inventory due to installation damage, this facility eliminated the need to maintain a similar inventory due to the durability of the membrane media. This added benefit offers substantial labor and material cost savings, plus it frees up square footage.

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