Your Professional ULPA Air Filter Supplier
SYNRUI Environmental Technology (Liaocheng) Co., Ltd. boasts a 20,000㎡ modern production base and a 3,500㎡ Class 100,000 cleanroom, specializing in the research and development and manufacturing of air filtration technologies for extreme clean environments. We not only mass-produce various series of ULPA ultra-high efficiency air filters, but also provide full-chain support from air filtration products to systematic purification equipment to engineering-level solutions for industries such as pharmaceuticals, high-end electronics, semiconductors, biosafety, and optical manufacturing.
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![Gel Sealing Mini Pleat ULPA Air Filters]()
Gel Sealing Mini Pleat ULPA Air FiltersGel sealing mini pleat ULPA air filters are terminal filtration elements designed for high-cleanliness environments such as semiconductor, pharmaceutical, biomedical, and precision manufacturing -
![Mini Pleat ULPA Standard Filter]()
Mini Pleat ULPA Standard FilterThe mini pleat ULPA standard filter is a terminal filtration device designed specifically for ultra-clean environments. It utilizes hot-melt adhesive as a separator, replacing the traditional -
![PTFE ULPA Filter]()
PTFE ULPA FilterPTFE ULPA filter is a filter using polytetrafluoroethylene (PTFE) filter material, with a non-partitioned design, compact structure. It is widely used in places that require a highly clean air -
![U16 PTFE ULPA Air Filter]()
U16 PTFE ULPA Air FilterU16 PTFE ULPA air filter adopts a partitionless design (hot melt adhesive replaces traditional aluminum foil/paper separators), forms a high-efficiency ventilation channel through a fully automatic -
![U15 PTFE ULPA Air Filter]()
U15 PTFE ULPA Air FilterU15 PTFE ULPA air filter combines the three advantages of EN 1822 ultra-high efficiency filtration grade, PTFE corrosion-resistant and temperature-resistant filter material, and a partitionless -
![Box Type PTFE ULPA Air Filter]()
Box Type PTFE ULPA Air FilterBox type PTFE ULPA air filter is an air purification device that utilizes the excellent filtering performance of PTFE filter material, the space optimization design of the mini pleat structure and -
![Mini Pleated ULPA Air Handler Filter]()
Mini Pleated ULPA Air Handler FilterMini pleated ULPA air handler filter is an air purification device that combines a mini pleat compact design, ultra high efficiency filtration performance, and large air volume processing -
![U15 U16 Mini Pleat ULPA Filter]()
U15 U16 Mini Pleat ULPA FilterU15 U16 mini pleat ULPA filter is specially developed for high-volume ventilation systems.It has the characteristics of high filtration efficiency, low resistance, large processing air volume and -
![Mini Pleated ULPA Standard Filter]()
Mini Pleated ULPA Standard FilterMini pleated ULPA standard filter is an air filtration device designed with a partition less structure and the filtration efficiency reaches the ultra-high efficiency level (U16/U15). It is mainly -
![Gel Sealing Mini Pleated ULPA Air Filter]()
Gel Sealing Mini Pleated ULPA Air FilterGel sealing mini pleated ULPA air filter is an air filtration device with a non-partition structure design and a filtration efficiency reaching the ultra-high efficiency level (U15). It is mainly -
![Top Gel Seal ULPA Air Filter]()
Top Gel Seal ULPA Air FilterTop gel seal ULPA air filter is a filter with ultra-high efficiency filtration performance. It adopts a partitionless structure design and is sealed by the top liquid tank to achieve air -
![Side Gel Seal ULPA Air Filter]()
Side Gel Seal ULPA Air FilterSide gel seal ULPA air filter is an air purification device that combines the advantages of a mini pleat structure, a side liquid tank sealing design and ultra-high efficiency filtration performance.
In the field of ultra-high efficiency (UHEPA) filtration, we adhere to a foundation of precision manufacturing processes, high-grade raw materials, and a rigorous testing system (ISO9001, ISO14001, ISO45001) to provide global customers with stable, reliable, low-energy-consumption, and high-cleanliness air filtration products. All ULPA filters undergo 100% MPPS efficiency testing, resistance testing, leak detection, and appearance/structure verification before leaving the factory, ensuring that every product meets the stringent requirements of high-level cleanrooms.
ULPA is one of the highest-level point-of-use (POU) filtration systems in the current air purification industry, commonly used in environments with extremely high requirements for air particle size, cleanliness, and microbial risk.
SYNRUI's ULPA series covers multiple grades including U15, U16, and U17, manufactured according to EN1822 and ISO 29463 standards. It utilizes ultra-fine glass fiber filter paper/PTFE microporous membranes, an automated folding process to ensure uniform fold height and airflow distribution, various structural options including aluminum, stainless steel, and magnesium-aluminum frames, a multi-seal design to prevent edge leakage, and MPPS single-point scanning and overall scanning detection to ensure filtration performance.
Product Advantages
Ultra-High Filtration Efficiency
ULPA filter media fibers have a diameter of only 0.2–0.5 μm and employ a multi-stage interception mechanism (diffusion effect, interception, inertial impaction).
This achieves an ULPA Efficiency of 99.9995%–99.999995% @ MPPS.
It maintains extremely high capture capacity for particles as small as 0.1–0.2 μm.
It significantly reduces the risk of particulate contamination in semiconductor and aseptic manufacturing processes.
Extremely Low Leakage Rate (Why: Gel Seal and Dual-Sealing Structure)
We utilize a liquid-seal gel or dual-side sealing strip structure.
Gel Seal automatically compensates for minor frame deformations.
Prevents micro-leakage from installation gaps.
More suitable for high-risk areas (such as Class A laminar flow) than traditional sealing strip solutions.
The product achieves a pass rate of up to 99.9% in field validation (PAO/DEHS).
Extremely Low Leakage Rate (Why: Gel Seal and Dual-Sealing Structure)
We utilize a liquid-seal gel or dual-side sealing strip structure.
Gel Seal automatically compensates for minor frame deformations.
Prevents micro-leakage from installation gaps.
More suitable for high-risk areas (such as Class A laminar flow) than traditional sealing strip solutions.
The product achieves a pass rate of up to 99.9% in field validation (PAO/DEHS).
Long Service Life
PTFE membranes have excellent chemical inertness
Can be used for 3–5 years without replacement in stable cleanrooms of ISO Class 2–4 (depending on operating conditions), reducing maintenance costs.
Multiple Frame Options
Optional frames:
Aluminum frame (lightweight, cost-effective)
Stainless steel frame (corrosion resistant, for food and pharmaceutical applications)
Magnesium-aluminum frame (for critical lightweight equipment)
Meets the different structural requirements of FFUs, Biobench, and Laminar Flow Units.
100% Full Inspection System
Efficiency Testing (EN1822-1)
MPPS Point Scan
Resistance Testing
Leak Detection Testing (PAO 99.99% Efficiency Verification)
Appearance & Dimensional Measurement
Ensuring every ULPA product you receive is directly usable in your end-use cleanroom.
Differentiated Advantages from Competitors
Common Industry Problems: Inflated efficiency claims, incomplete leak testing, frame deformation leading to leaks, excessive air resistance, high energy consumption, high post-installation verification failure rate.
SYNRUI's Difference:
All ULPA products undergo MPPS single-point and full-scan testing—not sampling, but full inspection.
Frames are manufactured using high-precision CNC equipment, with dimensional deviations < ±1 mm.
Utilizing a self-developed origami algorithm for more uniform airflow distribution.
Custom-made filters optimized for FFU/HEPA Box equipment manufacturers based on equipment airflow simulation.
Significantly improves verification pass rate, system stability, and subsequent energy consumption performance.
Application Scenarios
Semiconductor Wafer Facility (ISO 1–3)
Control submicron particle contamination, reduce wafer defects, and improve yield.
Biopharmaceuticals (Class A Laminar Flow Area)
Used in aseptic filling lines, isolators, and laminar flow hoods.
High-End Optical Manufacturing (Photolithography, Lens Production)
Prevent surface scratches and point defects caused by particles.
Laboratory/BSL Experimental Area
Protect the operating environment and reduce cross-contamination.
Precision Electronics Manufacturing (Hard Drives, Sensors)
Maintain extremely high cleanliness and ensure production consistency.
Customer Case Study
South Korean Semiconductor Customer
The customer's existing ULPA filtration system experienced multiple leaks during validation. After replacing the system with SYNRUI ULPA (U16), the first-pass yield rate increased from 84% to 99.4%, FFU air resistance decreased by 9%, and operating energy consumption decreased by 12% per year.
The customer stated:"The sealing stability and consistency of the SYNRUI ULPA filter are significantly better than our previous supplier, and the cleanliness data has consistently remained within the expected range."
Packaging, Shipping & Transportation
Double-layer shockproof packaging: Inner layer EPE for shock absorption, outer layer five-layer corrugated cardboard box
Corner protection: Ensures no deformation during transportation
Independent test report included with the box
Supports multiple shipping methods including sea freight, air freight, rail freight, and express delivery
Bulk orders include pallet packaging + waterproof film protection
Full tracking throughout the shipment; export experience covering 70+ countries.
After-sales service
On-site verification guidance (PAO/DEHS)
24-hour technical support
Filter replacement cycle assessment
Long-term stable supply agreements available (suitable for large factories)
OEM/ODM filter customization services
Why Choose Us?
SYNRUI is a leading manufacturer of high-end air filtration and purification equipment in China, serving the semiconductor, pharmaceutical, and electronics industries for over 19 years.
We offer a full range of filtration products (Pre → Medium → EPA → HEPA → ULPA)
We have our own cleanroom and self-developed production equipment.
High-level product consistency
Transparent production process feedback system
International certifications (CE, ISO series)
For wholesale customers, we offer competitive prices, stable inventory, and fast delivery.
FAQ
Q: 1. What is the difference between ULPA and HEPA? (long-tail: ULPA vs HEPA efficiency)
A: ULPA filters have higher efficiency, reaching 99.9995%–99.999995% @ MPPS, while HEPA filters are typically 99.97%–99.995%. They are used in higher-level cleanrooms.
Q: 2. What is MPPS for ULPA filters? (long-tail: MPPS particle size)
A: MPPS refers to the most easily penetrating particle size (≈0.1–0.2 μm). ULPA requires efficiency testing under MPPS conditions to ensure true performance.
Q: 3. Are ULPA filters compatible with FFUs? (keyword: ULPA FFU filter)
A: Yes. We can customize filters based on FFU airflow, dimensions, and flange configuration.
Q: 4. What is the typical service life of ULPA filters?
A: Typically 2–5 years, depending on the pre-filter configuration and cleanroom conditions.
Q: 5. What is the difference between Gel Seal and regular seals?
A: Gel Seal automatically adheres to the equipment frame, resulting in near-zero leakage, suitable for Class A environments.
Q: 6. Can you provide third-party test reports?
A: Yes, EN1822 test reports are included with the product, and CNAS-certified laboratory reports can also be provided.
Q: 7. Is the resistance of ULPA filters high? (long-tail: ULPA pressure drop)
A: SYNRUI reduces resistance through optimized folding and flow equalization structures, typically 8–12% lower than comparable products.
Q: 8. Can stainless steel frame ULPA filters be customized?
A: Yes. Suitable for corrosive environments and high-humidity spaces in pharmaceutical plants.
Q: 9. Is on-site leak testing required after ULPA installation?
A: Yes. PAO/DEHS scanning verification is required for most areas in Class A and semiconductor applications.
Q: 10. How to choose the ULPA rating (U15/U16/U17)?
A: Based on the cleanroom class, process sensitivity, and terminal equipment requirements, we provide professional selection support.
If you are looking for a stable, high-pass-rate ULPA ultra-high efficiency air filter that meets global cleanroom standards, please contact us today.
Get a quote, samples, or customized solution → The SYNRUI expert team will reply to you within 24 hours.
As one of the most professional ulpa air filter manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy ulpa air filter for sale here from our factory. Contact us for quotation.
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