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HEPA Filters
Deiiang™ HEPA Filters are engineered to provide absolute contamination control, delivering certified H13/H14 efficiency of up to 99.995% against 0.3-micron particles. Fully compliant with stringent EN1822 and ISO 14644-1 standards, our filters utilize high-density micro-glass media designed to ensure uniform laminar airflow while maintaining low initial resistance. This balance of energy efficiency and superior capture rates makes them the ideal solution for maintaining ISO Class 5 cleanrooms in critical pharmaceutical, biotech, and semiconductor manufacturing environments.
To guarantee zero bypass leakage, every unit is constructed with a robust, corrosion-resistant frame and features our proprietary fluid gel-seal technology for a perfect airtight fit. We prioritize operational safety through strict cGMP compliance, ensuring that 100% of our filters undergo individual leak testing and scanning before shipment. This rigorous validation process provides facility managers with verifiable reliability, ensuring your personnel and products remain fully protected from microscopic airborne pollutants.
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Deiiang™ Box/Header High Temperature HEPA Filter
- Width: 320mm, 484mm, 610mm, 915mm, 1220mm
- Depth: 150mm, 220mm
- Height: 320mm, 484mm, 610mm
- Rated Aair Volume(m³/h): 250, 600, 1000, 1500, 2000, 500, 1000
- Filtration Area(㎡): 2.59, 6.0, 9.59, 14.38, 19.17, 4.08, 9.46
- Dust Holding Capacity (g): 160, 360, 580, 860, 1150, 250, 570
- Initial Resistance(Pa): ≤200, ≤220
- Final Resistance(Pa): 400-600
- Filtration Efficiency: H13(99.97-99.99%@0.3μm), H14(99.995-99.999%@0.3μm)
- Filter Media: High-temperature resistant ultrafine glass fiber filter paper
- Sealant: High-temperature resistant inorganic adhesive
- Frame Material: ss304, Galvanized
- Protective Net: none, ss grid
- Separator: 0.035mm Aluminum foil
- Sealing Strips: 5mmWhite polytetrafluoroethylene
- Highest Temperature: 400℃
- Highest Humidity: 80%
Deiiang™ Box/Header Type HEPA Filter
- Width: 320mm, 484mm, 610mm, 915mm, 1220mm
- Depth: 150mm, 220mm
- Height: 320mm, 484mm, 610mm
- Rated Air Volume(m³/h): 250, 600, 1000, 1500, 2000, 500, 1000
- Filtration Area(㎡): 2.59, 6.0, 9.59, 14.38, 19.17, 4.08, 9.46
- Dust Holding Capacity (g): 160, 360, 580, 860, 1150, 250, 570
- Initial Resistance(Pa): ≤200, ≤220
- Final Resistance(Pa)：400-600
- Filtration Efficiency: H13 99.97-99.99%@0.3μm, H14 99.995-99.999%@0.3μm
- Filter Media: ultrafine glass fiber filter paper
- Sealant: Two-component polyurethane AB adhesive
- Frame Material: Aluminum, Galvanized, SS304
- Protective Net: none
- Separator: 120g/m³PVC sheet, 0.035mmAluminum foil
- Sealing Strips: EVA, Chloroprene rubber
- Highest Temperature: 80℃
- Highest Humidity: 80%
Deiiang™ Box/Header V-Bank HEPA Filter
- Width: 287mm, 592mm
- Depth: 292mm
- Height: 287mm, 592mm
- Interval: 2, 3
- Rated air Volume(m³/h): 900, 2850
- Filtration Area(㎡): 4.63, 15.03
- Dust Holding Capacity (g): 280, 900
- Initial Resistance(Pa): ≤60, ≤80, 100, ≤120
- Final Resistance(Pa): 250-300, 300-400, 400-450
- Filtration Efficiency: H14 99.995-99.999%@0.3μm
- Frame Material: Aluminum, Galvanized, SS304
- Filter Media: PP Meltblown Fiber, Ultrafine Glass Fiber Filter Paper
- Sealant: Two-Component Polyurethane AB Adhesive
- Filter Bag Type: Ultrasonic Bags, Self-Sewing Bags
- Protective Net: Powder-Coated Diamond Mesh
- Separator: EVA Hot Melt Adhesive
- Sealing Strips: EVA, Chloroprene Rubber
Deiiang™ Gasket Type HEPA Filter
- Width: 320mm, 484mm, 610mm, 915mm, 1170mm, 1220mm
- Depth: 50mm, 69mm
- Height: 320mm, 484mm, 610mm, 570mm
- Rated Air Volume(m³/h): 200, 450, 700, 1000, 1200, 1350, 250
- Filtration Area(㎡): 1.99, 4.51, 7.13, 10.58, 12.57, 14.04, 2.89
- Dust Holding Capacity (g): 120, 270, 430, 650, 750, 850, 180
- Initial Resistance(Pa): ≤200, ≤220
- Final Resistance(Pa): 400-600
- Filtration Efficiency: H13 99.97-99.99%@0.3um，H14 99.995-99.999%@0.3um
- Filter Media: ultrafine glass fiber filter paper
- Sealant: Two-component polyurethane AB adhesive
- Frame Material: Aluminum, Galvanized, SS304
- Protective Net: powder-coated diamond mesh
- Separator: EVA hot melt adhesive
- Sealing Strips: EVA, Chloroprene rubber
- Highest Temperature: 70℃
- Highest Humidity: 80%
Deiiang™ Knife Edge HEPA Filter
- Width: 346mm, 510mm, 636mm, 941mm, 1246mm
- Depth: 90mm
- Height: 346mm, 510mm, 636mm
- Rated Air Volume(m³/h): 400, 900, 1450, 2150, 2850
- Filtration Area(㎡): 4.16, 9.42, 14.9, 21.22, 29.33
- Dust Holding Capacity (g): 250, 570, 900, 1330, 1760
- Initial Resistance(Pa): ≤200, ≤220
- Final Resistance(Pa): 400-600
- Filtration Efficiency: H13 99.97-99.99%@0.3um, H14 99.995-99.999%@0.3μm
- Filter Media: ultrafine glass fiber filter paper
- Sealant: Two-component polyurethane AB adhesive
- Frame Material: Aluminum
- Protective Net: powder-coated diamond mesh
- Separator: EVA hot melt adhesive
- Sealing Strips: EVA, Chloroprene rubber
- Highest Temperature: 70℃
- Highest Humidity: 80%
HEPA Filters Features And Benefits
Galvanized/Stainless Steel Frame & Robust Construction
Deiiang™ BoxHeader Type High Temperature HEPA Filter features a strong and durable frame made of galvanized or 304 stainless steel (1.5/2.0mm thick), designed to prevent deformation, rust, and air leakage.
Reinforced with internal support rods and secured by fixing bolts, the frame ensures reliable structural integrity and stable performance even under high static pressure.
Outer Frame Material
Deiiang™ offers multiple robust outer frame options, including 304 stainless steel (3C certified), galvanized steel, and aluminum profiles, ensuring durability, corrosion resistance, aesthetic appeal, and reliable sealing with high-temperature resistant gaskets.
Eco‑Friendly AB Adhesive
Deiiang™ employs an environmentally friendly AB adhesive that cures at room temperature, is odor‑free, and provides excellent toughness along with oil and water resistance.
This ensures a secure, leak‑proof seal that enhances overall filter integrity.
Deiiang HEPA Product production line
Deiiang™ HEPA products are manufactured on highly automated production lines that integrate precision pleating, sealing, and assembly processes to ensure consistent quality and dimensional accuracy. This advanced automation improves production efficiency, reduces human error, and delivers stable, high-performance HEPA filters at scale.
Deiiang™ HEPA Filtration Efficiency and Resistance Testing
Deiiang™ HEPA filters undergo standardized factory testing for filtration efficiency and airflow resistance, strictly complying with internationally recognized testing protocols to ensure consistent and verifiable performance. Each unit is individually tested and documented before shipment, demonstrating Deiiang’s rigorous quality control and commitment to reliable, high-purity air filtration.
Filter Protecting Wire Net
Deiiang™ is equipped with a double-sided protective steel wire net that safeguards the filter paper, enhancing durability and stability while facilitating safe and convenient transportation and installation.
Technical Resources And Download
HEPA Filters FAQ
Why Choose Deiiang?
Engineered for critical environments, Deiiang™ filters exceed rigorous EN1822 and ISO standards to deliver hospital-grade air purity and absolute contamination control.
Leveraging decades of cleanroom manufacturing expertise, every unit undergoes individual leak testing and strict quality validation to guarantee full cGMP compliance.
Trusted by leading pharmaceutical and industrial facilities, our advanced gel-seal technology ensures a zero-bypass seal for superior durability and uncompromising safety.
Hygienic-Weld 技术
镜面抛光 Ra < 0.6µm
What is the filtration efficiency of Deiiang’s HEPA filters?
Deiiang offers a comprehensive range of HEPA filters ranging from H13 to H14 grades (according to EN 1822 standards), achieving filtration efficiencies of 99.95% to 99.995% for 0.3-micron particles. For ultra-clean environments, we also manufacture ULPA filters (U15-U17) with efficiencies up to 99.999995% for 0.12-micron particles. All filters are individually tested before shipment.
(Suggested Image: Diagram showing Deiiang FFU airflow dynamics within a ceiling grid. Alt Text: Deiiang Fan Filter Unit laminar airflow diagram for cleanroom ceiling system)
What media materials are used in Deiiang HEPA filters?
We primarily use high-quality micro-glass fiber media for superior dust holding capacity and stability. For specific applications requiring low boron or chemical resistance, we also offer PTFE (Polytetrafluoroethylene) membrane filters, which provide lower pressure drops and higher energy efficiency.
How do I choose between H13 and H14 HEPA filters for my facility?
Every Deiiang HEPA filter undergoes a rigorous scanning test (MPPS) to ensure zero leakage. We utilize advanced polyurethane (PU) gel sealing or endless dry gaskets to ensure a perfect airtight seal between the filter frame and the housing, critical for ISO Class 5 and cleaner environments.
(Suggested Image: Comparison chart of Deiiang FFUs in different materials and sizes. Alt Text: Deiiang Stainless Steel vs Galvalume FFU model selection guide)
Can Deiiang customize HEPA filters for non-standard cleanroom sizes?
Yes, as a direct manufacturer, customization is our core strength. Beyond standard sizes (like 24×24 or 48×24 inches), we can engineer filters with custom dimensions, frame materials (Aluminum, Stainless Steel, Galvanized), and depths to fit retrofitted HVAC systems or specific Fan Filter Units (FFUs).
Three-stage filtration system
G4 → F8/F9 → H14 HEPA
Which industries are Deiiang HEPA filters suitable for?
Our filters are engineered to meet the strict contamination control requirements of the Semiconductor, Pharmaceutical (GMP compliant), Biotechnology, Food Processing, and Hospital Operating Theaters industries. We understand the specific airflow and sterility mandates of each sector.
Do you offer High-Temperature HEPA filters?
Yes. For processes involving sterilization tunnels or drying ovens, Deiiang manufactures High-Temperature HEPA filters capable of withstanding continuous operating temperatures up to 250°C or 350°C, utilizing special ceramic sealants and heat-resistant frames.
(Suggested Image: Technician performing a room-side filter replacement on a Deiiang unit. Alt Text: Room-side HEPA filter replacement process for Deiiang FFU)
Do you provide test reports and certification with your shipments?
Absolutely. Transparency is key to our quality promise. Each filter comes with its own individual test report detailing efficiency, pressure drop, and serial number traceablity. We are ISO 9001 certified, ensuring our manufacturing processes meet international quality management standards.
(Suggested Image: Close-up of a customized FFU or a unit with a client’s label. Alt Text: Custom OEM Fan Filter Unit manufacturing by Deiiang)
How does Deiiang handle international shipping for delicate HEPA filters?
We have extensive experience in exporting fragile filtration products. All filters are packed in reinforced, palletized crates with ample cushioning to prevent damage during transit. We work with reliable logistics partners to ensure your filters arrive in perfect condition, ready for installation.
