AstroCel® I High Efficiency Particulate Air (HEPA) filters are the most efficient air filters commercially available.
Unit of Measure

Specifications

Brands

N/A AAF AstroCel® Flanders®

Minimum Efficiency at 99.97 Percent

N/A 0.3 µm

Minimum Efficiency at 99.99 Percent

N/A 0.3 µm

Minimum Efficiency at 99.999 Percent

N/A 0.3 µm

Scan Tested (Optional)

N/A AstroCel® I filters can be scan tested to eliminate pinhole leaks.

Media

N/A Waterproof Fire-Retardant Microglass Waterproof Fire-Retardant Radiation Resistant Microglass

Cell Side Material

N/A Plywood Fire Resistant Plywood Particle Board Fire-retardant Particle Board Galvanized Steel (Available with Antimicrobial treated media) Stainless Steel (Available with Antimicrobial treated media) Aluminum (Available with Antimicrobial treated media)

Separators

N/A Aluminum Vinyl Coated Aluminum

Bond

N/A Black Cement Polyurethane Elastomer Silicone

Gasket

N/A Neoprene Expanded Rubber Silicone Urethane

Gasket Location

N/A Both Sided None One Sided

Faceguards (Optional)

N/A 4 x 4 Mesh Hardware Cloth Galvanized Steel Stainless Steel

Faceguard Location

N/A Both Sided None One Sided

Underwriters Laboratories 586 Classified (Optional)

N/A Numbered UL certification label to applied.

Industry Standards/Certifications

N/A ASME AG-1 (Military and Nuclear Specifications) UL 586 (Underwriters Laboratories) Classified

Product Data

Size1 N/A 24 x 24 x 11 1/2 in8 x 8 to 36 x 72 in

Rated Airflow Capacity at 1.0 Inches of Water Gauge (in.w.g.) (250 Pascal (Pa)) Initial Resistance

N/A 1000 scfm1700 m³/h

Service Life Ratio at 1000 Standard Cubic Feet per Minute (scfm) (1700 Cubic Meter/Hour (m³/h))

N/A 1.0

Manufactured to the Highest Quality Standards

Standard Capacity

N/A 5 7/8 Inch (in) deep - 125 FPM at 1.0 in. w.g.

11 1/2 Inch (in) deep - 250 FPM at 1.0 in. w.g.
Efficiencies: 99.97 % and 99.99 % minimum efficiency an 0.3 micrometer particles.
Additional efficiency levels including ULPA available, Higher efficiencies up to 99.999995 % on 0.10 to 0.20 µm particles, available with our DimplePleat® and AstroCel® II mini-pleat filters.

Design and Construction

Design and Construction

N/A
Gasketed Wood Construction (with Particle Board) and Gasketed Metal Construction (Pan Style)

Gel Seal Metal Construction (Galvanized Steel) and Gel Seal Wood Construction (Plywood)

AstroCel® Selection

AstroCel® Selection

N/A AstroCel® I filters are available in a wide variety of standard sizes and construction materials. Special sizes can be fabricated or special materials used for unique requirements.

There are twelve criteria encompassing materials and performance that go into the makeup of an AstroCel® I filter. Careful selection of the right combination will result in the filter that best meets the needs of your application.

Performance Data

Performance Data

N/A
High Capacity AstroCel® I HCX High Efficiency Particulate Air (HEPA) Filter

Standard AstroCel® I High Efficiency Particulate Air (HEPA) Filter

High Temperature AstroCel® I Filters

High Temperature AstroCel® I Filters

N/A AstroCel® I filters are constructed with stainless steel or aluminum cell sides and are available for applications with continuous operating temperatures up to 750 ºF.
400 ºF (204 ºC) - Stainless Steel or Aluminum Cell Sides, White RVT Silicone Board
500 ºF (260 ºC) - Stainless Steel or Aluminum Cell Sides, Red RVT Silicone Board
750 ºF (399 ºC) - Stainless Steel or Aluminum Cell Sides, Black Cement Bond

Special Construction AstroCel® I Filters

Special Construction AstroCel® I Filters

N/A AstroCel® I Side Access Filters
AstroCel® I filters are constructed with a flange at the top and bottom for installation into earlier models of AstroSeal® side access housings. The filters are available with wood or metal cell sides.

Military and Nuclear Designs
AstroCel® I filters are available to comply with military and nuclear specifications (ASME AG-1) requiring special cell side material, radiation resistant media, rabbeted joints, special testing, and special packaging and marking.

Leak Scan Testing

Leak Scan Testing

N/A Filters that pass the overall efficiency test may still have minute pinhole leaks. AstroCel® I filters can be factory scanned to ensure there are no pinhole leaks. Scanning detects these leaks, which are repaired before the filter is released for shipment.

AAF Flanders® uses a proprietary static scan test with a challenge aerosol of non-toxic, poly functional alcohol that leaves no residue on the media.

For pharmaceutical and those applications requiring PAO, AAF Flanders® offers scanning with this material using a light scattering photometer.

Overall Efficiency Testing

Overall Efficiency Testing

N/A Two methods of overall efficiency testing used:

PAO Test - This has been the industry standard for many years. It is conducted using a light scattering photometer. The filter is challenged with Polyalphaolefin (PAO). By measuring the upstream and downstream concentration, filter efficiency can be calculated.

Laser Test - The filter is tested with a laser spectrometer using polystyrene latex (PSL) spheres. Filter efficiency is determined by comparing the upstream and downstream concentrations. Efficiencies down to 0.10 micrometers can be determined

Media Testing to Meet Exacting Quality Standards

Media Testing to Meet Exacting Quality Standards

N/A Every roll of media is carefully checked for a specific set of physical and performance characteristics, including:
  • Efficiency
  • Thickness
  • Tensile Strength
  • Water Repellency
  • Resistance
  • Weight
  • Binder Content

Underwriters Laboratories Classification

Underwriters Laboratories Classification

N/A UL Classified
AstroCel® I and AstroCel® I HCX filters are UL Classified.
Testing is performed according to UL Standard 900 and ULC S111 (except those made with non-fire-retardant wood cell sides).

UL 586
This standard ensures that each filter is individually tested at the factory, Additionally, representative filters are tested by UL to ensure that they provide HEPA level filtration, after being subjected to the following conditions:
  • High moisture (90 % R.H)
  • High temperature (700 ºF / 371 ºC) (short duration)
  • Low temperature (27 ºF to -3 ºC)
UL also subjects the filter to a spot flame test (1750 ºF/954 ºC) A numbered UL label certifying that the filter meets Standard 586 is then applied to the filter.

Guaranteed Performance

Guaranteed Performance

N/A In a modern testing, each air filter is individually tested by, well-trained AAF Flanders® personnel before shipment to the customer. The actual test data is indicated on the label. Each filter is also assigned a serial number, and a permanent record is kept of the materials of construction and performance.

Additional Information

Additional Information

N/A They have broad application in cleanrooms and other areas requiring the very highest levels of contamination control, including:
  • Semiconductor manufacturing
  • Electronics
  • Pharmaceutical processing
  • Photo film manufacturing / processing
  • Hospitals
  • Universities
  • Laboratories
  • Food processing
  • Asbestos abatement

Note

Note

N/A AstroCel® I filters are available to meet all performance classes per the Institute of Environmental Sciences & Technology (IEST) Recommended Practice (RP) IEST-RP-CC001.

AstroCel® I filters are available in a variety of construction materials and cell side configurations to fit AAF Flanders® and competitive framing systems or sealing designs.

AstroCel® is a registered trademark of AAF International in the U.S. another countries. DimplePleat® is a registered trademark of Flanders® Corporation in the U.S.

AAF Flanders® has a policy of continuous product research and improvement and reserves the right to change design and specifications without notice.
  • 1 AstroCel® I filter sizes are listed with the height dimension first, followed by the width, then depth.

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