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.
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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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Core Applications of Air Filtration for Hospitals & Operating Rooms
Airborne transmission, a primary target of air filtration, is a major pathway for pathogen spread in healthcare facilities. Properly designed air filtration significantly reduces surgical site infection (SSI) risk, protects immunocompromised patients, and helps control airborne diseases such as tuberculosis. This article details filtration solutions for general wards, negative-pressure isolation rooms, operating rooms, and ICUs, providing essential technical safeguards for clinical safety.
Why Air Filtration Matters in Hospitals
Preventing SSIs
- Risk: Airborne Staphylococcus aureus and Aspergillus spores can enter surgical wounds.
- Solution: Terminal HEPA filtration in ORs (≥99.97% at 0.3 μm) to cut off airborne transmission.
Protecting Immunocompromised Patients
- Population: Transplant, oncology, burn, and neonatal patients.
- Solution: Protective isolation rooms (positive pressure) with HEPA filtration for ultra-clean environments.
Controlling Airborne Diseases
- Diseases: TB, measles, varicella.
- Solution: Negative-pressure isolation with HEPA-filtered exhaust to contain pathogens.
Meeting Codes & Accreditation
Examples include national codes, ASHRAE 170, CDC guidance; JCI and tertiary-hospital accreditation require compliant air systems.
Zonal Solutions: Right Filtration, Right Area
| Area | Recommended Filters | Airflow Pattern | Pressure | ACH |
|---|---|---|---|---|
| General wards / waiting | G4 pre + F9 final | Mixed supply | Slight + | 4–6 / hr |
| Protective isolation (+) | G4 + F9 + H13 HEPA | Vertical unidirectional | Strong + | 12–15 / hr |
| Negative isolation (−) | G4 + F9 + H13 HEPA (exhaust) | Ceiling supply, low return | Strong − | 12–15 / hr |
| Standard OR | G4 + F9 + H13 HEPA | Turbulent / mixed | Positive | ≥20 / hr |
| Laminar-flow OR | G4 + F9 + H14 HEPA | Vertical UDAF (0.3–0.5 m/s) | Positive | per velocity |
Key Zones in Depth
Operating Rooms
- Supply: Terminal H13/H14 HEPA to achieve ISO Class 5 at the surgical field.
- Airflow:
- Laminar (UDAF): Ceiling blanket HEPA for high-risk surgeries; uniform vertical flow removes contaminants rapidly.
- Turbulent/Mixed: For routine surgeries, rely on ≥20 ACH dilution.
- Pressure: OR to corridor ≥ +15 Pa.
- T/RH: 22–24 °C, 50–60% RH.
Negative-Pressure Isolation Rooms
- Pressure: −15 to −30 Pa to ensure inward airflow only.
- Exhaust: HEPA-filtered discharge; independent HVAC preferred to avoid cross-connection.
ICU/NICU
- Filtration: At least F9; upgrade critical areas to HEPA where feasible.
- Controls: T/RH stability and low noise for vulnerable patients.
Quality Control & Verification
Integrity Testing: On-site PAO/DOP leak testing for terminal HEPA/ULPA after installation; requalify every 6–12 months.
Need a custom air filtration solution?
Contact the Whalesens engineering team for product selection and OEM/ODM support.
Email whalesens@gmail.com