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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Washable Plank Air Filter

Pre,Plank,Washable

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Reusable pre-filters whose media lifts out for washing while the metal frame and protective mesh stay in service.

A washable plank air filter is built to be taken apart. The media sits in a metal plank support frame behind protective mesh, and it can be lifted out, washed and put back, so the element is rebuilt rather than replaced. In a building with a heavy pre-filter load that is the difference between buying media and buying complete filters for the life of the unit.

The support frame is the part that decides how well this works in practice: a plank frame that keeps its shape after washing is what allows the media to be reused at all. Grades follow EN779 and cover the usual pre-filter duties. The one habit worth building is to inspect the frame each time the media comes out — once the planks no longer hold the media flat, washing stops saving anything.

Product Features

Media detaches for washing
Filter rebuilt, not replaced
Media, support frame and protective mesh come apart for cleaning and reassembly
Lower running cost
Frame reused for years
Only the media is consumed, which matters on large multi-stage AHUs
Metal plank support
No pleat collapse
Painted steel, galvanised or stainless internal frame keeps the media flat in service
Low initial resistance
30–50 Pa
G3 media runs at 30–35 Pa, G4 at 45–50 Pa at rated airflow

Key Specifications

Filtration grade G3, G4 (EN779); MERV5 – MERV8
Media Polyester synthetic fibre, detachable
Support frame Painted steel, galvanised steel or stainless steel plank frame
Outer frame options Aluminium, galvanised steel, stainless steel
Standard face size 595 x 595 mm
Depths 46, 96 mm
Filtration efficiency 75%, 85%, 95% (ASHRAE 52.1-1992)
Target particles ≥ 5 μm coarse dust and foreign particles
Continuous temperature ≤ 100 °C
Instant temperature ≤ 120 °C
Moisture resistance 100% RH
Maintenance Washable and reusable media, frame and protective mesh

Ideal Environments

Commercial Buildings

Hospitals

Shopping Malls

Schools

Airports

Fresh Air Units

Central HVAC Pre-filtration

Industrial Ventilation

Technical Parameter

Model Filtration Grade Dimensions (mm) W*H*D Initial Resistance (Pa) Final Resistance (Pa) Rated Air Flow (m³/h)
WS-G3-GF G3(EN799) 595*595*46 35 200 3400
WS-G3-GF G3(EN799) 595*595*96 30 200 3400
WS-G4-GF G4(EN799) 595*595*46 50 250 3400
WS-G4-GF G4(EN799) 595*595*96 45 250 3400
Washable Plank Air Filter · WHALESENS
Washable Plank Air 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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