PRODUCTS
🏭 Industry Application
⚡ Product Performance
🔧 Product Feature
EV Charging Stations Industry Application

Filtration for Power Equipment

Professional air filtration for EV charging devices, protecting against dust and sand ingress to ensure stable, reliable operation of charging piles and station infrastructure.

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Cleanroom & Semiconductor Industry Application

Ultra-High Cleanliness Filtration

Ultra-high efficiency filtration for semiconductor wafer fabs and precision electronics cleanrooms, capturing nano-scale particles to meet ISO Class 1–3 standards and maximize product yield.

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Commercial HVAC Industry Application

Central Air System Filtration

High-efficiency filtration for commercial building HVAC systems, improving indoor air quality, reducing energy consumption, and extending equipment service life.

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Data Centers Industry Application

Precision Equipment Protection

Precision air filtration for data centers, shielding servers and critical hardware from dust contamination to keep cooling systems running efficiently and reliably.

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Livestock & Farming Industry Application

Farming Environment Purification

Dedicated filtration systems for farms and livestock facilities — capturing dust, adsorbing ammonia, and inhibiting pathogen spread to improve animal health and overall productivity.

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Spray Booths & Industrial Dust Industry Application

Paint Mist & Dust Purification

Designed for spray booths and grinding workshops, efficiently capturing paint mist, metal dust, and wood chips to meet emission standards while protecting finished surface quality.

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Pre-Filter (G1–G4) Product Performance

First-Stage Large-Particle Capture

The first line of defense, capturing particles ≥5 μm such as dust, hair, and fibers to protect downstream filters and extend overall system service life.

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Medium-Efficiency Filter (F5–F9) Product Performance

Precise PM2.5 Capture

Captures fine particles of 1–5 μm including PM2.5, pollen, and mold spores, significantly improving indoor air quality for commercial HVAC and ventilation systems.

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HEPA High-Efficiency Filter Product Performance

Sterile-Grade Purification

≥99.97% filtration efficiency for particles ≥0.3 μm, delivering sterile-grade clean air widely used in medical, pharmaceutical, and electronics manufacturing.

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ULPA Ultra-High Efficiency Filter Product Performance

Sub-Micron Particle Capture

≥99.9995% efficiency for particles ≥0.12 μm, meeting the extreme cleanliness demands of semiconductor fabs, aerospace, and other ultra-precision applications.

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Related Products
High-Temperature Resistant Product Feature

Industrial-Grade Heat Tolerance

Built with specialized heat-resistant materials, operating stably up to 250°C for paint ovens, industrial dryers, and high-temperature process environments.

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Washable & Reusable Product Feature

Cut Costs, Reduce Waste

Cleanable by water washing or air blowing, reusable multiple times to significantly reduce replacement frequency and O&M costs — an economical, eco-friendly choice.

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Activated Carbon Product Feature

Odor & Harmful Gas Removal

Leverages activated carbon's high adsorption capacity to eliminate odors, VOCs, and formaldehyde, ideal for newly renovated spaces and industrial exhaust treatment.

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Bag Filter Product Feature

High Dust-Holding, Long Life

Bag-style construction delivers a larger filtration area, high dust-holding capacity, and extended service life — ideal for high-dust environments with reduced replacement frequency.

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Panel / Pleated Filter Product Feature

Compact Space-Saving Design

Compact form factor for easy installation and replacement; pleated structure maximizes filtration area within a small footprint for higher efficiency.

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Low-Resistance Airflow Product Feature

Energy-Saving Operation

Low-resistance design minimizes pressure drop while maintaining filtration performance, reducing fan energy consumption for cost-effective, eco-friendly operation.

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Related Products

250 Degree High Temperature Pleated Panel HEPA Filter

Paint Booth Ceiling Air Filter Media (WS-600G)

Paint Booth Ceiling Air Filter Media (WS-ZR600G)

Metal Plank Air Filter Mesh Filter

High Temperature Fiberglass Panel Filter

High Temperature Panel Filter

350 Degree High Temperature Pleated Panel HEPA Filter

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Activated Carbon Pocket Filter

Carbon,Bag

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Activated carbon pocket filters are a deep bag filter for HVAC systems, removing odors and low-concentration VOCs from supply air.

An activated carbon pocket filter is a gas-phase stage rather than a dust filter. Its media is activated carbon filter cotton held in a multi-bag construction, and it is installed in the air handling chain at the point where odors and low concentrations of formaldehyde, benzene and ammonia have to be taken out of the supply air. Because the target is gas, it belongs downstream of the particulate stages that would otherwise load the carbon with dust and shorten its working life.

The pocket shape exists to give the carbon a large media area within a limited duct depth, which keeps face velocity and resistance low while the air stays in contact with the carbon long enough for adsorption to take place. Selection comes down to the gas being targeted, the grade that matches the upstream filter, the frame arrangement, and whether the frameless option suits the holding frame. Replacement is driven by adsorption capacity rather than by differential pressure: a saturated carbon stage can still read a low pressure drop, so change-out is set by odor breakthrough, weight gain or the schedule the application needs.

Product Features

Multi-bag design
3, 5 or 6 pockets
High air throughput with a large adsorption surface
Media area
1.86 – 4.40 m²
Pocket geometry gives an immense surface area for odour and VOC capture
Rated airflow
1,700 – 4,250 m³/h
Matched to the pocket count and the housing opening
Low final resistance
65 Pa (G3), 80 Pa (G4)
A low working resistance across the whole service life

Key Specifications

Filtration grade G3, G4 (EN779)
Standard sizes 287×592×550, 490×592×550, 592×592×600 mm
Media Activated carbon filter cotton
Frame Galvanized iron, aluminum alloy, stainless steel, plastic
High temperature resistance ≤80 °C
Instant temperature resistance ≤120 °C
Moisture resistance 100% RH
Filter object Low concentrations of odours, foul smells, formaldehyde, benzene, ammonia and other organic compounds

Ideal Environments

commercial buildings

pharmaceuticals

healthcare facilities

food process

education

Material characteristics

Filter Media: Activated carbon filter cotton

Frame Options: Galvanized iron frame, aluminum alloy frame, stainless steel frame, plastic frame

Features:

  • Multi-bag design with high air throughput
  • Frameless option available
  • Reusable frames and support brackets

Technical Parameter

Model Filtration Grade W*H*D(mm) Pockets Quantity Media area (m³) Final Resistance (Pa) Rated Air Flow (m³/h)
WS-G3-AC-BG G3(EN799) 287*592*550 3 1.86 65 1700
WS-G3-AC-BG G3(EN799) 490*592*550 5 3.12 65 2800
WS-G3-AC-BG G3(EN799) 592*592*600 6 3.78 65 3400
WS-G4-AC-BG G4(EN799) 287*592*550 3 2.12 80 2250
WS-G4-AC-BG G4(EN799) 490*592*550 5 3.66 80 3650
WS-G4-AC-BG G4(EN799) 592*592*600 6 4.40 80 4250
Activated Carbon Pocket Filter· WHALESENS
Activated Carbon Pocket Filter

Our Commitment

  • Quality Assurance

    We have a robust quality and reliability assurance system spanning R&D to mass production. Our well-equipped laboratories and analytical instruments support chemical/raw material testing, failure analysis, yield improvement, reliability verification, and equipment calibration, ensuring consistent product quality and flexible customer satisfaction.

  • Service Guarantee

    We provide comprehensive after-sales support: our professional team stands ready to assist with any product issues or technical challenges. Upon receiving customer inquiries, we respond promptly to deliver optimal solutions, minimizing downtime and ensuring rapid resumption of your operations. Guided by a customer-centric approach, we continuously refine our service system to elevate overall service standards based on feedback and needs.

Our Materials and Craftsmanship

  • Modernized Factory

    Whalesens Technology’s modern factory features digital management, IoT-monitored automated lines for full-process control, and a Class 100,000 cleanroom for precision filter processing.

  • Stringent Process Workflow

    20+ precise inspections, CNC folding (error < 0.1mm) and extreme-condition validation ensure zero-defect, high-quality filters.

  • Advanced and Reliable Materials

    whalesens’s cartridges feature self-developed nano-glass fiber membranes (99.99% PM0.3 filtration, 15% lower resistance vs. imports) and key material autonomy—showcasing manufacturing strength.

About Us

As an innovator in the air filter industry, Whalesens Technology boasts over 20 outstanding R&D professionals, a 3,500 m² advanced intelligent modern factory, and cutting-edge industry equipment, providing leading manufacturing capabilities and comprehensive services. We have introduced advanced foreign management systems and established a trustworthy, well-rounded internal management framework to ensure that we operate using the best current practices. Relying on innovation and technology leadership, we deliver high-quality products, services, and solutions to our customers, continuously striving to create value for each client.
20+
Developers
26
Provinces Domestic
22
Countries Global
3500m2
Workshop

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