Overhead Filter Systems

Overhead Filter Systems are designed to help capture and filter airborne contaminants above or around the point where they are generated in industrial and commercial environments. They are commonly used where fumes, dust, smoke, or similar process emissions need to be controlled using an overhead hood, suspended capture arrangement, or partial enclosure. These systems are often selected when the process layout allows contaminants to rise naturally or when overhead capture is more practical than floor-mounted equipment.

These systems are often used where a work area needs localized contaminant control without relying on a portable unit or a full booth enclosure. Depending on the application, Overhead Filter Systems may use complete enclosures, partial enclosures, or suspended overhead hoods to help contain and remove contaminants from the work zone. The right approach depends on the contaminant, the process layout, the direction of contaminant movement, and the airflow needed to keep emissions from escaping into the surrounding workspace.

What are Overhead Filter Systems?

Overhead Filter Systems are localized exhaust and filtration systems that capture contaminated air from above the work process or within an enclosed or partially enclosed hood arrangement. In some applications, they may use a complete enclosure with minimal openings, while in others they may use a partial enclosure or suspended hood positioned over the source. They are typically selected when the process can be effectively controlled through overhead capture and when enclosure-based source control is more practical than arm-based extraction.

When should you use Overhead Filter Systems?

These systems are typically used when contaminants are generated in a defined work zone and an overhead or enclosure-style capture method can help contain and remove them effectively. They may be a strong choice for welding, polishing, buffing, and similar operations where the process can be partially enclosed or where suspended capture above the work area makes operational sense. The best fit depends on the process, contaminant behavior, hood or enclosure design, filter selection, and how consistently the system can keep emissions within the intended capture area.

Typical applications

• welding and fabrication
• buffing and polishing
• aerospace and metalworking applications
• auto body and vehicle repair processes
• educational welding shops
• maintenance and repair operations
• waste-management process areas
• workstation capture where partial enclosure is practical

Key benefits

• supports source capture from above or around the process
• can use complete or partial enclosure strategies where appropriate
• helps limit contaminant escape into the surrounding workspace
• suited to suspended and overhead-mounted configurations
• available in configurations for different airflow and filtration needs

Important selection considerations

When selecting an Overhead Filter System, key factors may include:

• contaminant type and concentration
• whether complete or partial enclosure is feasible
• hood or enclosure position relative to the source
• required airflow and containment performance
• filter selection for the application
• available overhead mounting or support structure
• accessibility and visibility within the work zone
• maintenance access and long-term operating requirements

The right Overhead Filter System depends on how and where it will be used. LEV-CO can help review your process, contaminant characteristics, layout, and filtration needs to recommend a practical solution for suspended capture, enclosure-based source control, and overhead filtration applications.