An experimental study on the filtration performance of a

Four pleated-packed HEPA filters with the ePTFE filter media were tested in this study. These filters differ in the type of filter media structure and pleat depth. Two of these filters use the conventional ePTFE filter media which only has a single layer of the ePTFE merane. For ease of reference, the conventional ePTFE filter media will be referred to as the 2D (two …

MEGAcel® II Ultra-Low Particulate Air (ULPA) Filters with

The MEGAcel® filter is extremely resistant to these harsh conditions and also offers superior efficiency and pressure drop characteristics. Manufactured with high quality ePTFE media, the MEGAcel® filter is water resistant and meets the requirements of UL 900 and ULC S111. The media pack is permanently attached to an anodized extruded

50 Years, 50 Articles » ISCC 2022: Contamination Control

Standard filter media for HEPA/ULPA filters so far had been fiberglass paper. Being free of boron filter media based on expanded Polytetrafluoroethylene (ePTFE) is used in microelectronics since decades. Based on latest developments in merane technology, such as PAO compatibility, ePTFE and expanded Fluoro-Resin Merane (eFRM) based HEPA …

US8152889B2 - Filter with EPTFE and method of forming

A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim …

eFRM HEPA Filtration Technology | AAF Flanders

eFRM ≠ ePTFE. eFRM media adds compatibility with oil-based aerosols, such as PAO, to the typical advantages of merane media – robust strength and significantly lower resistance. This unique coination of characteristics means that HEPA filters made with eFRM media are perfectly suited to use in Life Sciences appliions. Contact your AAF Flanders sales rep for …

en.lhtech.cn - Innovation & Quality

As an innovative leading manufacturer in air filtration industry since 1983, Shanghai LingQiao E.P.E.W. Co., Ltd specializes in the production of ePTFE HEPA filter media, advanced filter bags, and all kinds of felts & roll goods. 35 Years of Innovation. 30+ Years of OEM Background and Knowledge 25+ Years Production of World Class ePTFE Merane and Lamination

AAF HEPA-ULPA Filters - AAF MEGAcel I eFRM HEPA-ULPA

The AstroCel I filter is available in a variety of efficiencies, including 99.97%, 99.99% and 99.999% on 0.3 micrometer particles, and is also available with laser scanned factory certifiion. AstroCel I HEPA filters are used primarily in cleanrooms and clean zones, which require the very highest levels of contamination control.

Air filtration: Advantages of PTFE materials

3/4/2019· Glass fibre, polyester felt or PTFE, all of them can be used for HEPA or ULPA class cleanrooms. The main difference between these materials is the filtration process itself. The filtration with glass fibre or polyester felt media is done within the material. With PTFE filter media, the filtration occurs on the surface and that leads to several advantages; high efficiency …

HEPA Filters for Cleanroom Pharmaceutical Appliions

ePTFE HEPA Filters Conventional ePTFE merane filters cannot tolerate high concentrations of PAO aerosol (~15 µg/l), due to their hydrophobic properties. These filters quickly become saturated, and the resistance to airflow increases rapidly. This sensitivity to PAO and other hydrocarbons has therefore posed an obstacle for the implementation of ePTFE filters in …

Not all HEPA Filters are the Same - Power Engineering

22/5/2017· Not all HEPA filters are the same…. When it comes to HEPA filtration, there are two main options to select from: a filter made from Microfiber …

High Purity High Purity Products - Home | Daikin Commercial

HEPA/ULPA Filter Construction and Testing Options This table provides a thorough overview of the options available for each of our HEPA and ULPA filters, allowing you to make informed decisions for a given appliion and configuration. Each feature is denoted as standard (•), optional (Option), or not available ( ). MEGAcel ® I ePTFE* MEGAcel® II ePTFE* MEGAcel ® …

HEPA Media Options - Tom Barrow

HEPA Filters typically fail due to some form of contact coined with the poor mechanical strength of the media. Summary of Considerations for HEPA/ULPA Filter Selection This product guide contains multiple product options and configurations for your review and selection. Below is a helpful checklist of items to consider as you make your final selection. Media Integrity • …

with ePTFE Filtration Technology

Both the MEGAcel II HEPA filter and ePTFE Media are manufactured by AAF. By doing so, we can control the quality and consistency of the media. The media is produced in an ISO 7 cleanroom to ensure the purity and cleanliness of the product. The filter is then asseled, tested, and packaged in an ISO 7 clean manufacturing facility, resulting in unparalleled …

Hepa / Ulpa µ-Glass Filtration Media vs. ePTFE Meranes

ePTFE filters: uncertainty on energy saving 8 • ePTFE: low initial air resistance • But the air resistance increases sharply during dust loading 1um: almost zero H13/U15(U16) 0.5um G3/G4 F7/F9 E11/H13 5um: 50%~ MAU 60% Clean room ePTFE: Final filters of MAU have to be H13 glass media Glass media: Final filter of MAU only need to be E10/E11 glass media The air …

Alternative Test Methodology for In-Situ Testing of ePTFE

The HEPA filter used for the study was a Type C ePTFE filter, in accordance with IEST-RP-CC001.5, rated for a nominal flow of 630 cfm with an efficiency rating of 99.95% at the Most Penetrating Particle Size (MPPS). The IEST is a recommended practice for all HEPA and ULPA filters between customers and suppliers.

with ePTFE Filtration Technology

HEPA filter available, reducing energy consumption for significant savings • MEGAcel II and ePTFE media are manufactured, tested, and packaged in ISO 7 clean facilities to ensure the highest purity, quality, and consistency MEGAcel® II Overview • Available in H13 - U17 efficiency • Lowest pressure drop mini-pleat HEPA filter available • 50 mm pleated pack • Anodized …

GORE Turbine Filters for Air Inlet Filtration | E12

The second layer is ePTFE, which captures very fine sub-micron particles that pass through the pre-filter layer. Additionally, the ePTFE merane has a tight pore structure, which makes it naturally hydrophobic and blocks liquid water and dissolved salts and contaminants from passing through to the turbine, dramatically reducing fouling. The third and final layer is a robust …

ePTFE Media - Environmental Filtration Specialists

Without a filter cake on their surface, conventional filter media are rarely able to collect fine particulate efficiently; media blinding and atmospheric emissions occur over time as individual dust particles penetrate into and beyond the filter media. ePTFE filter media utilises true ‘surface filtration’ technology. A microporous ePTFE merane, it is laminated to the surface of a

MODERN PTFE MERANE BASED HEPA/ULPA FILTERS FOR …

Figure 1: ePTFE HEPA filter merane media. eFRM media is composed of similar structure but there are two layers of fine-tuned expanded fluoro-resin merane (eFRM) for improved depth filtration. Figure 2 shows a SEM photo of ePTFE merane (left) and traditional glass fiber media (right). Clear difference in structure can be seen. ePTFE merane has much smaller pore …

Turbine Filters | Complete Filtration

Premium ePTFE HEPA grade efficiency: Reduced maintenance cost: Reduced pressure drop: Increased revenue: Hydrophoebic media: Prolonged turbine life : Proprietary ePTFE merane: Eliminates on-line/off-line washing: Increased Energy. Reduced pressure drop, increased efficiency and superior durability provide a cleanroom standard to reduce off-line washing and …

MEGAcel® II ePTFE - AAFThailand

9/6/2020· The MEGAcel ® II ePTFE filter is extremely resistant to these harsh conditions, and also offers superior efficiency and pressure drop characteristics. Manufactured with a proprietary, high-quality ePTFE media, the MEGAcel® II ePTFE filter is hydrophobic and meets the requirements of UL900. The media pack is permanently attached to an anodized extruded …

MEGAcel® I ePTFE - AAFThailand

With an ePTFE HEPA H14* filter that removes 99.995% of viruses, bacteria and other micro-organisms; The compact neutral design and low noise levels means it blends into any space; Air exchange rate of up to five times every hour; Small dimensions makes it easily portable: 0.51 x 0.63 x 0.77m; Operates and an air flow rate of 850 m 3 /h; No need for adjustments to your …

Virus-free Air at ISH Digital 2021 - MANN+HUMMEL

11/2/2021· Each HEPA air filter installed (individually tested according to ISO 29463 and EN 1822) is equipped with an especially energy-efficient ePTFE medium, and is capable of safely filtering out more than 99.995 percent of viruses, bacteria and micro-organisms from the air. This means they are making an important contribution to tackling the Coronavirus pandemic. HEPA …

Modern PTFE merane based HEPA/ULPA filters for improved

Oil loading behavior HEPA filters microglass vs. ePTFE vs. eFRM media conventional ePTFE, PAO tolerant eFRM 592mm x 592mm x 69mm filters; PAO loading rate 45µg/l Thanks to: Milholland & Associates, Holly Springs (NC), USA, for conducting these tests. eFRM eFRM eFRM . Soot loading test HEPA filters microglass vs eFRM media filter type I 15 Volume flow …

ePTFE Merane | Nordic Air Filtration

ePTFE Merane Technology Equals Increased Efficiency High durability, high efficiency ePTFE merane helps meet EPA requirements (PM2.5, MACT, NESHAP) and will reduce Total Cost of Ownership with: Reduced emissions (PM10, PM2.5 and Sub-Micron PM) Lower operating differential pressure Longer effective life cycle of bags and pleated bags Aids in recovery from …

Commercial Air Filter Inquiries | Air Filtration

Everywhere where you need clean air! We are able to advise you on the most appropriate filters for any appliion. If necessary, all our filters can be custom made to fit perfectly on your existing equipment. Feel free to contact us with the form below or at 1-800-808-0496 or [email protected] Contact Us 1.

GORE™ Liquid Microfiltration Meranes | Media for

With the best-available balance of retention and flow, GORE® Microfiltration Media enable the production of ePTFE merane filters for semiconductors and microelectronics processing and provide assurances of purity and repeatable high performance. Contact Us. Contact Region. United States +1 800 542 3146 +1 410 506 0106 fax. China +86 21 5172 8299. Germany +49 …

Fluorofil™ ePTFE Merane Cartridge Filters

The enhanced ePTFE merane offers exceptionally high gas flow rates at low pressure differentials. Fluorofil™ cartridges are recommended for sterile gas filtration and venting appliions. The hydrophobic characteristics of the ePTFE merane makes the Fluorofil™ filter cartridge particularly suitable for wet gas sterilising appliions, such as fermenter air feed.

ePTFE merane laminated HEPA media traps 0.3 micron and larger particles, with an efficiency of 99.995%. It has the features of high collection efficiency, low pressure drops and large dust capacity. It is also a kind of anti-microbial media which eliminates the bacteria, avoid the air a secondary pollution and purify environment. APPLIION: HEPA filters and mini-pleat …

Merane Solutions for Industrial Processes

Tetratex ® ePTFE Merane Filter Media can help: • Optimize filter performance • Increase bag life and production rates • Reduce downtime. ABOUT DONALDSON MERANES Donaldson Meranes is a leading worldwide manufacturer of expanded microporous PTFE meranes, films and laminates. A technology–driven company committed to satisfying customer needs …