In sub-nanometer semiconductor fabrication, wafer foundry lithography bays, and ISO Class 1 to Class 10 ultra-clean environments, even a single sub-micron particle can compromise microchip architecture, leading to catastrophic production yield loss. Traditional HEPA materials often lack the micro-pore density needed to trap nanoscale pollutants down to 0.1–0.2 µm.
Engineered specifically to eliminate yield-killing contaminants, our U15 ULPA fiberglass filter paper is manufactured with ultra-fine glass micro-fibers under strict cleanroom conditions. This high-efficiency U15–U16 ULPA glass fiber media provides exceptional particle capture while maintaining continuous structural uniformity and stable pressure drop. By integrating our 75gsm ULPA filter paper, cleanroom equipment OEMs and microelectronics facilities can ensure absolute airflow purity, preventing costly wafer contamination and maximizing manufacturing yield.
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Engineered for ultra-critical cleanroom environments, our 0.34mm ULPA media roll achieves an ultra-high efficiency rating of ≥ 99.999% at Most Penetrating Particle Size (MPPS, 0.12–0.3 µm) under a 5.3 cm/s face velocity. Designed for demanding Fan Filter Units (FFU) and microelectronics projects, this specialized fiberglass media perfectly balances absolute filtration efficiency with continuous operational stability.
Low Pressure Drop Performance: Despite its ultra-dense micro-fiber lattice, the media maintains an optimized initial resistance of ≤ 480 Pa for U15 grade, serving as a high-efficiency, low pressure drop ULPA media.
Superior Mechanical Strength: Features a high tensile strength (MD 1.0–1.25 KN/m) and stiffness rating of ≥ 950 mg, effectively preventing media flutter or pleat deformation under heavy air streams.
Factory-Direct Quality Guarantee: Manufactured by a leading ULPA filter paper manufacturer, every production batch undergoes strict scan testing to deliver MPPS certified ULPA filter paper with zero bypass risk.
| Technical Parameter | Specification Value | Test Standard |
| Filter Grade | ULPA U15 (U15 – U16 optional) | EN1822 / IEST-RP-CC001 |
| Filtration Efficiency | ≥ 99.999% | @ MPPS / 0.12 – 0.3 μm Test |
| Initial Resistance | ≤ 480 Pa | @ 5.3 cm/s Face Velocity |
| Basic Weight | 75 ± 4 g/m² | ISO 536 |
| Thickness | 0.34 ± 0.02 mm | ISO 534 (@ 20 kPa) |
| Tensile Strength MD | 1.0 – 1.25 KN/m | ISO 1924-2 |
| Stiffness Rating | ≥ 950 mg | Taber Stiffness Tester |
| Pinhole Leak Resistance | 100% Scan Tested (Zero Bypass) | Laser Particle Counter Scan |
| Temperature Endurance | ≤ 250 °C (Continuous) | DIN 53438 Flammability Class F1 |
Fully customizable specifications available. For detailed technical data, please 【visit the product page】 or 【reach out to our technical team】directly.
Engineered for ultra-critical cleanrooms, our ultra high efficiency ULPA paper is specifically formulated to deliver continuous, particle-free laminar airflow across high-demanding industrial and life-science sectors:
Semiconductor & Photolithography: Essential for semiconductor fab cleanroom media installations, advanced photolithography track tools, optical lens manufacturing bays, and critical silicon wafer handling zones requiring photolithography cleanroom air media.
ISO Class 1 Environments: Specially designed for ISO Class 1 cleanroom filter paper setups, high-end Fan Filter Units (FFUs), ultra-clean ceiling grids, and laminar flow hood systems in nanotechnology research centers.
Bio-Pharmaceutical & Life Sciences: Integrated into ultra-sterile isolators and bio-pharmaceutical ultra clean paper air filtration barriers where zero microbial contamination and chemical resistance are strictly mandatory.
Due to the precise environment of ISO Class 1–10 facilities, replacement of bulk ULPA media roll manufacturer elements is governed by precise cleanroom air monitoring protocols.
Ultra-Clean Semiconductor & Photolithography Conditions (ISO Class 1-100): In continuously recirculated cleanroom environments featuring multi-stage pre-filtration, monitor static pressure differential daily. Filter replacement is recommended when differential pressure reaches 650 – 700 Pa or after 36 – 48 months of operation during scheduled cleanroom maintenance outages.
High-Duty Bio-Isolator & Microelectronics Processing Conditions: In localized high-velocity FFU systems, chemical processing tools, or pharmaceutical isolator hoods, replace filter elements when pressure differential exceeds double the initial pressure (≥ 800 Pa) or when air velocity drops below certified laminar flow specifications.
Frequently Asked Questions
Q: What is the efficiency difference between your H14 HEPA and U15 ULPA fiberglass filter paper?
A: While H14 HEPA offers 99.995% efficiency at 0.3 μm, our U15 ULPA fiberglass filter paper elevates filtration performance to ≥ 99.999%. It is engineered as ultra low penetration filter paper designed to catch nanoscale particles in semiconductor wafer fabs.
Q: Can this high stiffness glass fiber paper withstand continuous high-velocity FFU airflow?
A: Yes. Engineered with a high stiffness rating (≥ 950 mg) and tensile strength MD (1.0 – 1.25 KN/m), this high stiffness glass fiber paper prevents pleat sagging or vibration during long-term operation in automated Fan Filter Units.
Q: How does your factory support OEM semiconductor filter media requirements?
A: As a specialized OEM semiconductor filter media direct supplier, we provide custom slitting, tailored roll lengths, and specialized moisture-proof export packaging to ensure zero contamination during transit to cleanroom filter assembly plants.
Q: Is this media MPPS certified for microelectronics manufacturing tenders?
A: Yes, all our U15-U16 ULPA glass fiber media batches undergo MPPS (Most Penetrating Particle Size) evaluation in accordance with EN1822, providing fully traceable test reports as MPPS certified ULPA filter paper.
Q: What is the initial pressure drop of this 0.34mm ULPA media roll at standard face velocity?
A: Tested at 5.3 cm/s air velocity, our 0.34mm ULPA media roll features an initial resistance of ≤ 480 Pa for U15 grade, operating as an energy-efficient low pressure drop ULPA media option for high-density cleanroom ceiling grids.
