Industry Background
Public transportation hubs such as bus terminals, train stations, and subway waiting areas accommodate thousands of passengers daily. These high-density environments feature continuous human turnover, limited ventilation, and frequent exposure to pathogens. Maintaining clean air is critical to protect commuters, staff, and operational efficiency while ensuring compliance with public health regulations.
Pain Points
High Passenger Density:
Crowded areas increase the likelihood of airborne virus transmission.
Poor Ventilation:
Enclosed waiting halls and underground stations often have limited fresh air exchange.
Odors and Pollutants:
Vehicle exhaust, dust, and cleaning chemicals contribute to poor air quality.


Risks and Challenges with Mitigation
Virus Transmission in Enclosed Spaces
Risk: Confined areas accelerate virus and bacteria spread.
Mitigation: HEPA H14 + UV-C sterilization removes ≥99.99% of pathogens.
High Air Pollutants from Traffic and Crowds
Risk: Exhaust fumes, dust, and VOCs reduce air quality.
Mitigation: Activated carbon and plasma technology neutralize VOCs and capture fine particles.
Continuous 24/7 Operation Demand
Risk: Transport hubs require uninterrupted operation with minimal maintenance.
Mitigation: Energy-efficient, durable design supports long runtimes with low servicing needs.
Noise and Passenger Comfort
Risk: Loud equipment disrupts commuter experience.
Mitigation: Silent mode ≤48 dB ensures quiet operation in waiting areas.
Technical Specifications
|
Parameter |
Value |
|
Filtration System |
HEPA H14 + Activated Carbon + UV-C + Plasma |
|
Virus & Bacteria Removal Rate |
≥ 99.99% |
|
CADR (Clean Air Delivery Rate) |
1200–3000 m³/h (optimized for large spaces) |
|
Noise Level |
≤ 48 dB (silent mode) |
|
Power Consumption |
220–550 W |
|
Operation Mode |
24/7 continuous with smart sensors |
|
Compliance Standards |
EN 1822, ISO 14644, CE, UL, RoHS |
Our Solution
Core Technologies
Medical-Grade HEPA H14:
Captures fine particles and airborne pathogens down to 0.1 μm.
UV-C Sterilization:
Effectively inactivates viruses and bacteria, preventing secondary infections.
Plasma + Activated Carbon:
Eliminates VOCs, odors, and harmful gases from exhaust and chemicals.
Intelligent Monitoring:
Real-time PM2.5, VOC, and CO₂ detection with automatic fan speed control.

Designed for continuous, heavy-duty use in high-traffic transport hubs.
Modular filters enable fast replacement and reduced downtime.
Energy-efficient design reduces long-term operational costs.
Success Cases
In the enclosed underground metro station waiting area, high passenger density and poor ventilation created a challenging environment for maintaining safe air quality. The lack of natural airflow increased the risk of airborne pathogen transmission and made pollutant accumulation more severe.
To address this, high-CADR purifiers equipped with medical-grade HEPA H14 filters and UV-C sterilization were installed. This solution reduced airborne microbial load by 93% and kept PM2.5 levels consistently below 15 μg/m³, ensuring cleaner, healthier air for passengers in a crowded and enclosed space.


