A Ductless Fume Hood is a self-contained laboratory ventilation system designed to protect personnel from hazardous fumes, vapors, gases, and airborne contaminants generated during laboratory procedures. Unlike conventional ducted fume hoods, a Ductless Fume Hood uses high-efficiency filtration technology to capture and purify contaminated air before safely recirculating it back into the laboratory, eliminating the need for external ductwork.
At Comech Industries, our Ductless Fume Hoods are engineered to provide reliable containment, operator safety, and energy-efficient performance for laboratories and research facilities. Designed with advanced filtration systems and user-friendly operation, they offer an effective solution for applications requiring safe handling of chemicals and hazardous substances. Application:-| Material | MS Powder Coated / Stainless steel (SS 304/316) / Polypropylene |
| External Dimensions | Customizable (Standard: 4ft, 6ft, 8ft models) |
| Airflow Type | Ducted with external exhaust |
| Face Velocity | 0.5 m/s – 0.7 m/s (Adjustable) |
| Sash Material | Toughened glass (Vertical/horizontal sliding) |
| Work Surface | Stainless steel / Granite |
| Filtration System | Carbon filter (optional) |
| Noise Level | < 65 dB |
| Lighting | LED (Energy-efficient) |
| Power Supply | 220V-240V / 50-60Hz (Customizable) |
A Ductless Fume Hood is an enclosed laboratory workstation that protects users by capturing hazardous airborne contaminants at the source. The contaminated air is drawn through specialized filters, such as activated carbon filters and HEPA filters depending on the application, where harmful particles, fumes, and vapors are removed before the cleaned air is recirculated into the laboratory.
Because the system does not require external ducting, it offers greater installation flexibility while reducing infrastructure costs and energy consumption. It is particularly suitable for laboratories where duct installation is impractical or where specific chemical applications can be safely managed using filtration technology.
Comech Industries manufactures Ductless Fume Hoods using high-quality materials to ensure durability, chemical resistance, and long service life. The units feature an efficient filtration system, low-noise blower, transparent front sash for operator visibility, energy-efficient lighting, ergonomic workspace, and user-friendly controls. Depending on laboratory requirements, the filtration system can be configured with activated carbon filters, HEPA filters, or combination filtration to suit various applications.
Ductless Fume Hoods are widely used in pharmaceutical laboratories, research and development facilities, educational institutions, biotechnology laboratories, healthcare laboratories, chemical testing laboratories, environmental testing centers, quality control laboratories, and industrial research facilities. They provide a safe working environment for handling chemicals, solvents, powders, and laboratory reagents while helping maintain laboratory safety standards.
A Ductless Fume Hood provides effective protection against hazardous airborne contaminants without requiring expensive ductwork or complex building modifications. Its self-contained filtration system helps improve laboratory safety, reduces installation costs, minimizes energy consumption, and allows greater flexibility in laboratory layout. The system also offers simplified maintenance, quiet operation, and reliable contaminant removal, making it an efficient solution for modern laboratory environments.
During laboratory operations, the blower draws contaminated air away from the operator and into the filtration chamber. Depending on the contaminants involved, the air passes through activated carbon filters to adsorb chemical vapors, HEPA filters to capture fine particulate matter, or a combination of both filtration technologies. Once the contaminants have been effectively removed, the purified air is safely recirculated into the laboratory. This continuous filtration process helps maintain a safer and cleaner working environment while protecting laboratory personnel from exposure to hazardous substances.
Comech Industries manufactures laboratory safety equipment designed to meet the evolving requirements of modern laboratories and controlled environments. Our Ductless Fume Hoods combine efficient filtration, durable construction, ergonomic design, and dependable performance to deliver long-term reliability. We also offer customized configurations based on laboratory applications, filter selection, working dimensions, and operational requirements, ensuring each solution meets the specific needs of our customers.
What is a Ductless Fume Hood?
A Ductless Fume Hood is a self-contained laboratory ventilation system that filters hazardous fumes, vapors, and particles before recirculating clean air back into the laboratory.
How does a Ductless Fume Hood work?
The system draws contaminated air through activated carbon filters, HEPA filters, or both, removing hazardous contaminants before safely returning filtered air to the workspace.
What is the difference between a Ductless Fume Hood and a Ducted Fume Hood?
A Ductless Fume Hood uses an internal filtration system and does not require external ductwork, while a Ducted Fume Hood exhausts contaminated air outside the building through a dedicated duct system.
Where are Ductless Fume Hoods commonly used?
They are commonly used in pharmaceutical laboratories, biotechnology facilities, research laboratories, educational institutions, healthcare laboratories, and industrial testing laboratories.
Can Ductless Fume Hoods be customized?
Yes. Comech Industries offers customized Ductless Fume Hoods with different sizes, filter configurations, airflow capacities, and workspace options to meet specific laboratory applications.
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