Best Seller 
Shop
Hvac Filters
Deiiang™ Cleanroom HVAC Filters are engineered to deliver uncompromised purity for critical environments. Whether supporting strict cleanroom classification standards in pharmaceutical labs or handling heavy-duty industrial air filtration in manufacturing ovens, our filters provide the reliability professionals demand.
Our Box and Header Type HEPA filters utilize advanced micro-glass fiber media within robust frames to maintain stable HEPA filter efficiency (H13-H14) even under thermal stress. The aerodynamic wedge-pleat design ensures uniform airflow and low energy consumption, extending filter service life.
Why Choose Deiiang™?
Real expertise lies in our validation process. At Deiiang™, we don’t just assemble filters; we verify them. We strictly individually test every single filter unit using DOP (Dispersed Oil Particulate) scanning methods before packaging. We manually inspect frame-to-media bonding integrity to guarantee zero bypass leakage. This hands-on, 100% testing protocol ensures that when you install a Deiiang™ filter, you are getting a component that is proven to perform from day one.
Showing all 5 results
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%
Hvac 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.
High Temperature Filter 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.
Wedge Pleat Design with Separators
Deiiang™ incorporates a corrugated separator structure that precisely maintains pleat spacing, maximizes filter media utilization, and minimizes resistance.
The filter media is folded into 180° wedge-shaped pleats with double creases, forming a rigid box-style pleat at the separator ends to prevent media damage and ensure consistent airflow distribution.
Lightweight ABS Frame Design
Featuring a frame made of durable ABS plastic, Deiiang™ combines light weight with ease of installation, providing practical handling without compromising structural strength.
Reinforced Structural Integrity
Designed with internal stainless steel face support rods and secured with bolted connections, Deiiang™ eliminates sharp edges, reduces filter movement during operation, and prevents air leakage or damage caused by wind load pressure, ensuring enhanced stability and durability.
Factory Direct Sales
Deiiang™ is available through factory‑direct sales, offering a broad selection of standard specifications alongside custom‑sized options, ensuring customers receive precisely the filter they need with competitive pricing and reliable supply.
Technical Resources And Download
Hvac 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 types of Cleanroom HVAC filters does Deiiang™ manufacture?
Deiiang™ offers a complete range of filtration solutions covering all stages of air purification:
- Pre-Filters (G3-G4): For capturing large particles and protecting downstream filters.
- Medium Filters (F5-F9/MERV 8-15): Bag or box filters for fine dust.
- HEPA Filters (H13-H14): High-Efficiency Particulate Air filters capturing 99.99% of particles @ 0.3μm.
- ULPA Filters (U15-U17): Ultra-Low Penetration Air filters for semiconductor and nanotech applications (99.9995% @ 0.12μm).
- High-Temperature Filters: Designed for sterilization tunnels and ovens.
(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)
Which international standards do Deiiang™ filters comply with?
Our filters are rigorously tested and certified to meet global standards, including EN 1822 (European standard for HEPA/ULPA), ISO 29463 (Global standard), and ASHRAE 52.2 (for pre/medium filters). Each HEPA/ULPA unit comes with an individual test report verifying its efficiency and leak integrity.
How do I choose between H13 and H14 HEPA filters for my facility?
It depends on your required cleanroom classification (ISO 14644-1).
- H13 (99.95% – 99.99% efficiency): Generally suitable for ISO Class 7 and Class 8 zones.
- H14 (99.995% efficiency): Essential for ISO Class 5 (Class 100) and stricter environments like pharmaceutical sterile filling or microelectronics. If you are unsure, consult our engineering team with your specific cleanroom class requirements.
(Suggested Image: Comparison chart of Deiiang FFUs in different materials and sizes. Alt Text: Deiiang Stainless Steel vs Galvalume FFU model selection guide)
What is the initial pressure drop of your HEPA filters?
Deiiang™ focuses on energy efficiency. Our standard H13/H14 filters feature low initial pressure drop (typically 110Pa – 160Pa at rated airflow) thanks to optimized mini-pleat technology. Lower pressure drop reduces the load on your fans (FFU or AHU), directly lowering your electricity costs.
Three-stage filtration system
G4 → F8/F9 → H14 HEPA
How often should cleanroom filters be replaced?
Replacement cycles vary by usage and ambient air quality, but general guidelines are:
- Pre-filters: Every 1-3 months (or wash if washable).
- Medium filters: Every 3-6 months.
- HEPA/ULPA filters: Every 2-4 years. We recommend monitoring the differential pressure. When the resistance reaches 2x the initial pressure drop, it is time to replace the filter to ensure system balance and cleanliness.
Can Deiiang™ filters handle high humidity or corrosive environments?
Yes. We offer filters with aluminum separators and robust anodized aluminum frames for high-humidity resistance. For chemical environments, we provide PTFE media filters and stainless steel frames that resist acid/alkali corrosion better than standard glass fiber media.
(Suggested Image: Technician performing a room-side filter replacement on a Deiiang unit. Alt Text: Room-side HEPA filter replacement process for Deiiang FFU)
Can you customize filters to fit non-standard AHU sizes?
Yes, customization is a core Deiiang™ service. While we stock standard sizes (e.g., 610x610mm, 1170x570mm), we can manufacture filters to any dimension with various frame depths (69mm, 80mm, 90mm, etc.) and gasket types (gel seal or endless gasket) to fit your existing HVAC units or Fan Filter Units (FFU).
(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)
What is the lead time for large orders?
For standard sizes, we maintain stock for quick shipping (3-5 days). For custom orders or large quantities (e.g., for a full cleanroom construction project), our automated production line typically completes orders within 10-15 business days.
How do you ensure filters are not damaged during shipping?
HEPA filter media is fragile. Deiiang™ uses heavy-duty reinforced packaging. Filters are individually bagged, boxed with corner protectors, and palletized on wooden pallets with shrink wrap to prevent physical damage and contamination during transit.
(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)
Do you provide leak testing services or installation guidance?
Every filter leaves our factory tested. For installation, we provide detailed manuals and video guides on how to install and seal filters correctly to avoid bypass leakage. For large projects, we can offer remote technical consultation to assist your on-site validation team (DOP/PAO testing).
