EV Charging Stations
Filtration for Power Equipment
Cleanroom & Semiconductor
Ultra-High Cleanliness Filtration
Commercial HVAC
Central Air System Filtration
Data Centers
Precision Equipment Protection
Livestock & Farming
Farming Environment Purification
Spray Booths & Industrial Dust
Paint Mist & Dust Purification
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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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.
View Related Products →Central Air System Filtration
High-efficiency filtration for commercial building HVAC systems, improving indoor air quality, reducing energy consumption, and extending equipment service life.
View Related Products →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.
View Related Products →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.
View Related Products →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)
First-Stage Large-Particle Capture
Medium-Efficiency Filter (F5–F9)
Precise PM2.5 Capture
HEPA High-Efficiency Filter
Sterile-Grade Purification
ULPA Ultra-High Efficiency Filter
Sub-Micron Particle Capture
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.
View Related Products →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.
View Related Products →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.
View Related Products →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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High-Temperature Resistant
Industrial-Grade Heat Tolerance
Washable & Reusable
Cut Costs, Reduce Waste
Activated Carbon
Odor & Harmful Gas Removal
Bag Filter
High Dust-Holding, Long Life
Panel / Pleated Filter
Compact Space-Saving Design
Low-Resistance Airflow
Energy-Saving Operation
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.
View Related Products →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.
View Related Products →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.
View Related Products →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.
View Related Products →Compact Space-Saving Design
Compact form factor for easy installation and replacement; pleated structure maximizes filtration area within a small footprint for higher efficiency.
View Related Products →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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New Energy · Wind Power & EV Charging Solutions
Why new energy, wind power and EV charging are hard on air filtration
The equipment is unattended for years
Chargers, cabinets and nacelles are maintained on long intervals, often in remote locations. Filters have to hold performance far longer than in a serviced plant room.
Dust, moisture and salt mist arrive together
Coastal and offshore sites combine airborne dust with humidity and chloride. Media must resist all three, not just the particle load.
Every pascal costs power and heat
Airflow resistance turns into fan energy and into heat inside a sealed cabinet — exactly what power electronics cannot tolerate.
Flame retardance is written into specifications
Foam media in electrical enclosures are increasingly specified to UL 94 HF-1 for the foam grade, and suppliers are expected to show a test report.
Recommended filtration system
Outdoor power equipment is usually protected by a single washable stage rather than a filter chain. The choice is therefore about pore size, flame class and weather resistance.
| Application | Typical media | What it protects against | Recommended product |
|---|---|---|---|
| EV charging cabinet | Polyurethane foam, 25–60 PPI | Dust, insects, splash | WSE-S EV charging protection filter |
| BESS / outdoor cabinet | Flame-retardant polyether foam | Dust, condensation | Polyether mesh flame-retardant foam |
| Wind turbine nacelle | Filter media roll / pads | Dust, oil mist, salt mist | Filter media roll |
| PV inverter | Activated carbon + particle media | Corrosive gases, fine dust | Activated carbon filter media |
Key control points
- 1Choose PPI against the real dust load. Lower PPI (larger pores) holds more dust at lower resistance; higher PPI catches finer particles but loads faster. 25–40 PPI covers most outdoor cabinets.
- 2Specify the flame class you actually need. Where UL 94 HF-1 is required, ask for the SGS report rather than a material datasheet claim.
- 3Design the intake so water cannot follow the air. A labyrinth, louvre or knockout ahead of the media prevents rain and wash water from reaching the foam.
- 4Wash on condition, not on a schedule. Washable foam lowers lifetime cost, but a clogged filter raises cabinet temperature long before it is visibly dirty.
- 5Keep spares at the site level. For distributed assets, the cost of a service visit usually exceeds the cost of the filter.
Frequently Asked Questions
What PPI should I choose for an EV charger filter?
Most DC fast chargers use 25–40 PPI polyurethane foam. Lower PPI gives lower resistance and higher dust holding; higher PPI gives finer capture at the cost of faster clogging. The right value depends on the dust concentration at the site.
What does UL 94 HF-1 mean?
It is a horizontal burning classification for foam materials under UL 94. HF-1 is the highest rating in that test, equivalent in intent to V-0 for rigid plastics, and it is increasingly written into charger and cabinet specifications.
Are these filters washable?
Polyurethane and polyether foam media can be washed and reused if they are handled carefully and fully dried before refitting. A wet filter blocks airflow and can promote corrosion.
How long do outdoor cabinet filters last?
It depends almost entirely on the site. A rural inland installation may run for a year or more, while a coastal or construction-adjacent site can load a filter in weeks. Inspect on the site’s own interval.
Why use activated carbon in a PV inverter?
Inverters combine fine dust with corrosive gases such as hydrogen sulfide and sulfur dioxide. A particle filter alone cannot stop the gas-phase corrosion that shortens electronics life.
Key Takeaways — For outdoor power equipment the filter is a weather and fire component as much as a dust component: choose PPI for the site, prove the flame class, and keep water out.