#1 in Fabric Duct Sales Every company has already switched to FlowSox, the Korean-made fabric duct.
1. Flame-Retardant Fabric: The Only One in Korea Meeting National Fire Agency Standards (0 Seconds Afterflame Time)
The flame-retardant fabric from Fabric Duct Co., Ltd. is the only fabric duct material in Korea that meets the national fire safety standards[National Fire Agency Notification No. 2022-29]. With zero seconds of afterflame time, it offers superior flame-retardant performance compared to any imported fabric duct currently on the market.
The antimicrobial fabric from Fabric Duct Co., Ltd. inhibits 99.9% of bacteria on the surface of the fabric duct. By suppressing the growth of mold and bacteria, it reduces the risk of mold formation. It is especially suitable for food processing plants where hygiene is critical.
3. No Harmful Substances Detected
Fabric Duct Co., Ltd. uses fabric that is safe for human health, free from 20 types of arylamines and formaldehyde—substances that can cause direct or indirect harm to the body.
Chungbuk Eumseong Agricultural Cooperative Apple Storage
Achieved optimal airflow of 0.3m/s
N Company 3-Tier Smart Farm
Achieved optimal airflow of 0.3–0.5m/s
Chuncheon Bandabi Center Curling Rink
Achieved ice surface airflow below 0.2m/s
Incheon National University Swimming Pool
Achieving air velocity below 0.2m/s at the sleeping level
Designed by the nation's leading experts
Our top-tier domestic HVAC research team designs fabric ducts based on fluid dynamics, thermodynamics, and CFD simulations, managing the entire process from manufacturing to installation and maintenance.
Cooler internal temperature analysis with defrost pockets applied
Temperature analysis of N Company's 9-tier smart farm
Internal flow analysis of chambers and branch pipes
Pressure loss analysis based on nozzle shape
Every site is different, so your solution should be too
Step 1
Problem diagnosis and consultation by HVAC experts
Problem diagnosis by specialized HVAC engineers
Problem-centered analysis, not just product-focused
Step 2
Site-specific engineering design
Mechanics-based quantitative design
CFD simulation-based predictive verification
Step 3
Systematic design proposals and quotes
Data-driven system design
Design proposals and quotes
Step 4
Direct domestic manufacturing and fast delivery
Direct domestic manufacturing ensures delivery within 1.5 weeks on average
High quality at a lower cost than imported products
Step 5
Installation and fast after-sales service
In-house professional installation team
After-sales service responded to within 3 days on average
See the superiority of our domestic fabric ducts at a glance.
FlowSox eliminates all these inconveniences. Experience it now at a reasonable price.
Fabric Duct Co., Ltd. is the first company in Korea dedicated exclusively to the research and manufacturing of fabric ducts.
Made in Korea
As the only domestic manufacturer, we offer fast delivery within 2.5 weeks and reliable after-sales service.
Lowest Price Supply
In-house production eliminates distribution margins, offering the lowest prices in the country.
Quick Quote
Request a Quote Quotes provided within 24 hours
Superior Quality
Durable high-performance fibers paired with installation accessories for quick setup.
Patented Fabric Duct Technology
The first and only company in Korea to hold patents for fabric duct manufacturing and application methods.
Product Lifecycle Management (PLM)
Fabric Duct Co., Ltd. manages everything from design, manufacturing, and delivery to installation and maintenance.
Fabric ducts are the most rational choice for HVAC systems.
01
Cost Savings
Fabric ducts are 70% more cost-effective than metal ducts.
02
Efficient Air Distribution
Advanced air distribution technology ensures uniform airflow with no dead zones.
03
Rapid Installation
Installation is four times faster and easier compared to traditional metal ducts.
04
Customized Systems
We offer 100% customized design and manufacturing to meet your specific requirements.
05
Easy Maintenance
Easy to disassemble and machine-washable, making maintenance simple and convenient.
FlowSox offers a genuine 10-year quality guarantee.
While imported products claim to offer a 20-year warranty, the warranty period for individual components is much shorter, and they often refuse free repairs for various reasons. Furthermore, the service process is time-consuming.
We guarantee our own products for a full 10 years. That is how confident we are in our quality. Choose FlowSox, the only domestically produced flame-retardant fabric with over 60% higher durability.
Domestic Flowsox Flame-Retardant Fabric vs. Imported Flame-Retardant Fabric
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