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E-FILT Pre-Filtration Unit Primary Protection Solution for Air Purification Systems ► ​Key Features • ​Reinforced Construction: Moisture-resistant composite fiberboard frame (Aluminum frame optional) • ​Optimized Media Design: 3D pleated structure increases effective filtration area by 2.8x • ​Performance Advantages: 40% higher particle holding capacity 30% lower operational resistance • ​Maintenance Protocol: Fiberboard frame: Disposable cartridge Aluminum frame: 2-3 cleaning cycles recommended ► ​System Protection Mechanism As first-line defense in HVAC systems, effectively captures: ✓ Hair/fibers ✓ Airborne particulates (≥5μm) ✓ Pollen/cotton fluff Extends service life of secondary filters by 18-24 months ► ​Custom Engineering Solutions Tailored configurations available: Duct connection customization (±2mm tolerance) Frame material selection (Fiberboard/Aluminum) Filtration stages (Single/Double pleat layers) ► ​Typical Applications • Commercial: Office towers/Shopping malls/Convention centers • Institutional: Hospitals/Educational campuses/Transport hubs • Industrial: Electronics cleanrooms/Food processing/Pharmaceutical plants   Filter Specifications ​Parameter ​Specification ​Frame Paper frame, Aluminum frame, Silver-plated frame, Galvanized frame, Stainless steel frame ​Frame Thickness 22mm, 25mm, 46mm, 96mm, etc. ​Filter Media Polyester synthetic fiber ​Max Temperature ≥80°C ​Moisture Resistance ≥100% ​Efficiency CLASS EN779 G4 (5μm particle retention) ​Dimensions 24″ × 24″ × 2″ (inches) 595 × 595 × 46mm (millimeters) ​Air Volume 3400 m³/h ​Initial Pressure Drop 60Pa

E-FILT Nylon Mesh Filter Constructed with black PP material mesh, this filter demonstrates exceptional acid/alkali corrosion resistance. Its filtration efficiency remains stable through repeated washing cycles. Featuring a dual-layer nylon mesh reinforced with steel wire support structure, it offers two frame options: Galvanized steel frame Aluminum frame Custom sizing available based on project specifications. Primary Applications Designed for primary air purification in HVAC systems, it serves as: Protective pre-filtration solution Return air filtration solution Typical Installations Large-scale ventilation systems in: Office complexes Medical facilities Commercial centers Sports arenas Transportation hubs Filter Specifications ​Item ​Specification ​Frame Paper-aluminum composite frame, Galvanized frame, Stainless steel frame ​Frame Thickness 10mm, 22mm, 25mm, 46mm, etc. ​Filter Material PP nylon mesh ​Max Temperature ≥80°C ​Moisture Resistance ≥100% ​Dimensions 24″ × 24″ × 2″ (inches) 595 × 595 × 46mm (millimeters) ​Air Volume 3400 m³/h ​Initial Pressure Drop 60Pa

E-FILT Full-Metal Air Filter (Industrial Term: Metallic Media Filter / Washable Pre-Filter) Core Advantages ✓ ​Low Air Resistance Design: Optimized airflow path reduces pressure drop ✓ ​High-Efficiency Dust Capture: Multi-layer metallic media enhances particle retention ✓ ​All-Metal Construction: Stainless steel or aluminum alloy, 100% washable Technical Specifications • ​Temperature Resistance: Continuous operation at 250°C (482°F) • ​Frame Options: Anodized Aluminum / Galvanized Steel / 304 Stainless Steel • ​Filter Structure: Corrugated metal layered design + Reinforced support frame • ​Maintenance: Compatible with high-pressure washing (up to 80 bar) Typical Applications Pre-filtration for commercial building HVAC systems Overspray capture in automotive paint shops High-temperature exhaust treatment in industrial plants Corrosion-resistant ventilation in chemical labs Item Description Frame Aluminum frame, Galvanized frame, Stainless steel frame Frame Thickness 22mm, 25mm, 46mm, etc. Filter Material Metal mesh Max Temperature ≥80°C Moisture Resistance ≥100% Dimensions 24″ x 24″ x 2″ (Inches) 595 x 595 x 46mm (Millimeters) Air Volume 3400 m³/h Initial Pressure Loss 60Pa

E-FILT Panel Activated Carbon Filter (Also known as: Carbon Filter Panel / Chemical Adsorption Filter Media) Product Features • ​Polymer Bonding Technology: Premium activated carbon powder permanently bonded to fibrous filter substrate • ​Uniform Thickness: Consistent density with excellent air permeability, zero residual odor • ​Effective Adsorption: Removes industrial VOCs (Volatile Organic Compounds) including benzene derivatives, formaldehyde, radon, and sulfur dioxide Configuration Options ✓ ​Media Types: Activated carbon granules / Carbon filter media / Carbon foam / Standard carbon panels ✓ ​Frame Choices: Waterproof paper frame / Galvanized steel frame / Aluminum alloy frame / Stainless steel frame Primary Applications Designed for gas purification in electronics factories, semiconductor cleanrooms, pharmaceutical facilities, food processing areas, and medical institutions. Can be installed as standalone filtration units or integrated with HVAC systems. Technical Specifications Sheet  ​Parameter ​Specification ​Frame Material Paper Frame / Aluminum Frame / Galvanized Steel Frame / Stainless Steel Frame ​Frame Thickness 22mm, 25mm, 46mm (Customizable) ​Filter Media Activated Carbon Granules / Activated Carbon Non-woven / Activated Carbon Foam ​Max. Temperature ≥80°C (≥176°F) ​Moisture Resistance ≥100% RH (Non-condensing) ​Dimensions 24″ x 24″ x 2″ (595 x 595 x 46mm) ​Air Volume 3400 m³/h ​Initial Pressure Drop 60 Pa @ rated airflow

V-Bank HEPA Filter Technical Specifications Compliance Standards ✓ EN 1822:2009 Class H13/H14 (MPPS ≥99.95%/99.995%) ✓ IES-RP-CC001.3 Type A/B/C/D Performance Features • ​Extended Service Life: 12,000+ hours @0.45 m/s airflow • ​Energy Efficient Design: 30-40% lower pressure drop vs. standard HEPA Technical Parameters ​Parameter ​Metric ​Equivalent Standards Structural Depth 292mm (11.5″) ISO 29463-1:2017 Max. Temperature ≥80°C (176°F) IEC 60068-2-14 Thermal Testing Humidity Tolerance 100% RH (non-condensing) ASTM E337-15 Hygrometry Frame Options Anodized Aluminum Galvanized Steel (G90) 304 Stainless Steel (AISI 304) PP Polymer ASTM B209/B633/A240 Filtration Media • Borosilicate Glass Fiber Media Fiber Diameter: 0.3-0.5μm Electret Treatment: Permanent electrostatic enhancement Sealing System • ​Gasketless Design: CNC-machined frame achieves ≤0.01% leakage (ISO 14644-3 tested) • Seam Treatment: Laser welding + silicone secondary sealing Applications ✓ ISO Class 5-7 Cleanrooms (Semiconductor Fabs/Aseptic Packaging) ✓ GMP Cleanrooms (Grade A Terminal Filtration) ✓ BSL-3 Laboratories (Containment Systems) Filtration Efficiency： P.S.L & D.O.P Testing 99.999% at 0.3μ（H14） P.S.L & D.O.P Testing 99.99% at 0.3μ（H13） HEPA Filter Specifications Table ​Model ​Dimensions (L×W×D) ​Rated Airflow ​Initial Pressure Drop ​Final Pressure Drop EHFV-B-287×592×292 287×592×292 mm 25.5 CMM (900 CFM) 27.7 mmH₂O (270 Pa) 50.8 mmH₂O (500 Pa max) EHFV-B-592×592×292 592×592×292 mm 51.0 CMM (1800 CFM) 27.7 mmH₂O (270 Pa) ≤500 Pa EHFV-B-305×610×292 305×610×292 mm 25.5 CMM (900 CFM) 25.4 mmH₂O (249 Pa) *Recommended Value EHFV-B-610×610×292 610×610×292 mm 51.0 CMM (1800 CFM) – – Notes: Dimensions exclude gasket thickness Custom dimensions available upon request

E-FILT Overhead Filtration System (Industrial Terms: Plenum Filter / Spray Booth Ceiling Pad) Core Composition • Base Material: High-strength silicon-free synthetic fibers with anti-tear design • Manufacturing: Gradient-compacted three-layer structure + full-depth adhesive curing • Airflow Layer: Reinforced grid pattern on outlet side (diamond or square mesh options) Key Features ✓ Intelligent Dust Retention: Captures 99%+ particles even at saturation ✓ Airflow Guidance: Special surface texture maintains ±5% velocity uniformity ✓ Extended Durability: 50% longer service life than standard ceiling filters ✓ Fire & Moisture Resistant: Certified for industrial safety standards Typical Installations Automotive spray booth plenums | Furniture curing oven airflow layers Industrial coating line static chambers | Cleanroom primary filtration stages Product Specifications – Model EF-600G ​Parameter ​Specification ​Model EF-600G ​Material Dimensions 20m×1.6m×22mm / 20m×2m×22mm (L×W×Thickness) ​Material Composition Polyester Fibers ​Weight 600 g/m² (ASTM D3776 Standard) ​Dust Capacity 400 g/m² (ISO 11057 Test Method) ​Air Velocity 0.26 m/s (0.51 ft/s) @ standard operation ​Temp. Resistance 120°C (248°F) continuous exposure ​Fire Rating Self-extinguishing Class F1 DIN 53438 Compliant (German Flammability Standard) ​Filtration Efficiency 97-99% (ASHRAE 52.2 Particle Range) ​Initial Resistance 26 Pa (0.1 in w.g.) @ rated airflow ​Final Resistance ≥400 Pa (1.6 in w.g.)

E-FILT Fiberglass Paint Arrestor Mesh (Also known as: Fiberglass Filter Cotton / Paint Arrestor Felt / Spray Booth Floor Filter Media) Key Features: ▶ ​Advanced Manufacturing: Engineered with alkali-free glass filaments using 3D non-woven technology ▶ ​Flame Resistance: UL900 Class 1 fire-rated, withstanding continuous temperatures up to 170°C (338°F) ▶ ​Dual-Side Identification: Green-white layered structure (green side indicates airflow intake) ▶ ​Eco-Certified: Compliant with RoHS & REACH environmental regulations Core Functions: Captures over 90% of overspray particulates in coating processes, effectively preventing: Equipment surface contamination Re-deposition of paint on substrates Excessive VOC emissions Typical Applications: ✓ Industrial spray booth air filtration systems ✓ Automotive painting cabin exhaust treatment ✓ Dry scrubber filtration units ✓ HVAC primary filtration stages Technical Specifications: ▷ ​Material Thickness: 50mm / 100mm (customizable) ▷ ​Standard Sizes: 1m×20m / 2m×20m (available in rolls or pre-cut sheets) ▷ ​Operating Temp.: -40°C to 170°C (-40°F to 338°F) ▷ ​Fire Rating: ASTM E84 Class A certified   Filter Product Specifications ​Parameter ​Specification ​Frame Paper frame, Aluminum frame, Galvanized frame, Stainless steel frame ​Frame Thickness 22mm, 25mm, 46mm (Customizable) ​Filter Media Glass long fiber ​Max. Temperature ≥170°C (338°F) ​Moisture Resistance ≥100% RH ​Dimensions 24″ X 24″ X 2″ (595 X 595 X 46mm) ​Air Volume 3400 m³/h @ 1.0 m/s face velocity ​Initial Pressure Drop 60 Pa @ rated airflow

E-FILT Resin Fiber Filter (Industrial Grade) ​Material Certifications ​EU Compliance: ROHS Halogen-Free Certified｜UL 94 V-0 Flame Rating ​Chemical Resistance: Acid/alkali resistant (pH 2-12)｜UV stabilized (ISO 4892-3 tested) ​Core Performance ✔ ​10-Year Structural Integrity – ≥5-year service life in immersion conditions (ASTM D638 tensile test) ✔ ​Dual-Permeability Design – Porosity ≥85% (ISO 9227 salt spray validated) ✔ ​Eco-Circularity: Thermally recyclable (≥90% recovery rate, REACH compliant) ​Global Applications ​Manufacturing: Automotive electrophoretic coating lines｜Semiconductor fab exhaust treatment ​Water Systems: Cooling tower fill media｜Seawater desalination pre-filtration｜RO membrane protection ​HVAC Engineering: Hospital OR AHUs｜Data center humidifier water filtration ​Standard Specifications ​Dimensions: 500×500×20mm (Standard)｜500×500×50mm (High-Dust Capacity) ​Density: 40kg/m³ (Customizable gradient density: 20-60kg/m³) ​Custom Services: Laser cutting/CNC die-cutting (compatible with AAF, Camfil, Freudenberg interfaces) Technical Specifications   ​Parameter ​Description ​Frame Material Aluminum frame, Galvanized frame, Stainless Steel frame ​Frame Thickness 20mm, 50mm ​Filter Media Imported bio-based filter media ​Max. Temperature ≥80°C ​Moisture Resistance ≥100% (Non-condensing) ​Dimensions 24”×24”×2” (inches) / 595×595×46mm ​Airflow Capacity 3400 m³/h ​Initial Pressure Drop 60Pa

​E-FILT Industrial Air Filter Cartridge ​Product Overview A specialized compressed air purification component for blower systems (globally recognized as ​Air Filter Cartridge), designed to efficiently capture particulate contaminants (≥0.5μm) in compressed air streams. ​Core Advantages ✔ ​Military-Grade Filtration – ISO 16890 compliant, ≥95% efficiency on PM2.5 ✔ ​Tool-Free Quick-Release – 3-minute installation by one operator (no tools required) ✔ ​Dual-Mode Operation – Handles oil mist & humid air streams (≤90% RH) ​Global Industrial Applications ​Manufacturing: Powder coating lines, laser cutting fume recovery ​Energy Infrastructure: Gas turbine intake pre-filtration, air compressor main unit protection ​Material Processing: Wood polishing dust control, metal 3D printing powder recycling ​Compatibility ​Direct Integration: Compatible with Atlas Copco, Ingersoll Rand, and other leading compressor brands. ​Upgrade Option: UL 900 fire-rated version available (for flammable dust environments). Filter Cartridge Specifications (Compatible with Donaldson, GE, AAF, Nordic, etc.) ​Model ​Top OD (mm) ​Top ID (mm) ​Mounting Holes (mm) ​Media Area (m²) ​Filtration Accuracy (μm) ​Rated Flow (m³/h) ​Initial ΔP (Pa) ​Bottom OD (mm) ​Height (mm) EF-3266 324 213 14 21 1-2 800 80-100 324 660 EF-3275 324 213 14 24 1-2 900 80-100 324 750 EF-32100 324 213 14 31 1-2 1200 80-100 324 1000 Notes: ​Initial ΔP: Measured with clean media under standard airflow conditions (excludes system resistance). ​Compatibility: Direct replacement for Donaldson P/N ​XX-XXXX, GE ​GEPXXXX, AAF ​AAF-XXX series. ​Standards: ISO 16890 compliant, UL 900 Class 2 fire-rated (optional).