"Prepared for Japan's crises with Japanese technology."
Due to climate change, pandemics, and rising geopolitical risks, the importance of evacuation facilities and shelters is increasing. However, many ventilation systems are manufactured overseas, posing potential risks of delays in parts supply and maintenance. The AT Barrier is produced domestically in Japan, making it highly reliable in times of emergency with minimal risk of delays in product supply or maintenance. Equipped with high-performance filters, it can respond to CBRN threats and disasters, while also serving for air purification during normal times.
CBRNE Protection Unit
The AT-Barrier 150 is equipped with a proprietary unit specifically designed to address CBRNE threats (Chemical, Biological, Radiological, Nuclear, and Explosive). It effectively purifies contaminated air during emergencies.
Preparedness for both emergencies and everyday safety
The performance of the AT-Barrier extends beyond disaster scenarios—it is also effective against everyday airborne pollutants such as odors, allergens, PM2.5 particles, and gases. It functions as a permanent air purification system that can be used with confidence even in normal times.
Comprehensive removal of airborne contaminants.
Chemical
Biological
Radiological
Nuclear
Explosive
VOC
Odors
Mold & spores
Pollen
Volcanic ash
Smoke
PM2.5
Multi-Layer Air Filtration System

Chemical Filter
With a military-grade specialized chemical filter, toxic gases such as hydrogen cyanide and VX gas, as well as gaseous hazardous substances like VOCs and odors, are physically and chemically adsorbed and removed at the molecular level.
HEPA Filter
Equipped with a high-performance, medical-grade HEPA filter that removes 99.97% of particles 0.3 microns or larger. It offers broad-spectrum protection against viruses, bacteria, mold spores, PM2.5, and even particulate radioactive materials—a major concern in nuclear incidents.
Pre-Filter
A high-durability filter that captures large airborne particles such as dust, hair, pollen, and textile fibers at the initial stage. It significantly enhances the performance and lifespan of the subsequent filters.
Cyclone Separation Mechanism
Physically removes heavy particles in the air—such as sand, volcanic ash, and pollen—using centrifugal force.
Operation Modes

Normal Mode
A comfort operation mode designed to maintain indoor air quality during everyday conditions. It efficiently circulates air within the space, ensuring a consistently comfortable environment.

Emergency Mode
A high-performance air purification mode designed for disasters and emergencies. All filters and the cyclone mechanism operate simultaneously to thoroughly eliminate harmful substances.

Battery-Powered Mode
Operates even during power outages or when securing electricity is difficult. Powered by tool-grade batteries, it maintains the same level of air purification as the Emergency Mode.
Comfort Meets Peace of Mind
Odor Testing Conducted by an Independent Research Institute
In shelters and enclosed spaces, odors from sweat, human waste, and decomposition can accumulate, leading to increased psychological stress and hygiene risks.
The AT-Barrier 150 demonstrates high effectiveness in removing such odors, even in long-term closed environments. Its odor removal performance was verified in a test chamber simulating conditions in evacuation shelters and bunkers, targeting representative malodor components such as sweat, waste, and decomposition odors.





*Test Institution: Kurashi no Kagaku Laboratory Co., Ltd.
*Test Chamber: 30 m³ stainless steel chamber (W2730 × H2500 × D3700 mm)
Applicable for Use in Evacuation Shelters, Including Disaster-Affected Areas



- -Personal private shelters
- -Disaster shelters in municipalities and public facilities
- -Evacuation shelters (schools, hospitals, government buildings)
- -BCP (Business Continuity Planning) bases for companies (data centers, manufacturers, financial institutions)
- -Temporary clinics and waiting areas in medical and welfare facilities
Specifications
Airflow Capacity | 150 m³/h |
---|---|
Ventilation Modes | Normal Mode Emergency Mode Battery-Powered Mode |
Filters | Pre-Filter HEPA Filter Chemical Filter |
Rated Power | 100V (50/60Hz) |
Power Consumption | 53W (Normal Mode) 130W (Emergency Mode) |
Noise Level* | 53 dB (Normal Mode) 59 dB (Emergency Mode) |
Power Cord Length | 2m |
Dimensions (mm) | W700 × D700 × H1400 |
Unit Weight | 160kg |
*Noise levels were measured at a distance of 1 meter from the center of the unit.
Actual noise levels may vary depending on the operating environment.
Contact