At-Source Capture Systems

At-Source Capture Systems are designed to help capture airborne contaminants directly at or very near the point where they are generated. They are commonly used in industrial and commercial environments where dust, fumes, smoke, or fine particulate need to be controlled with a more targeted high-pressure, low-volume approach rather than broader room-level air cleaning. These systems are often selected for tough applications where close-in capture, tool connection, or small-nozzle pickup is needed.

These systems are often used where the contaminant source is highly localized and effective control depends on capturing material before it spreads into the surrounding work area. Depending on the application, At-Source Capture Systems may include mobile HEPA vacuums, high-vacuum dust collectors, and multi-stage filtration arrangements with components such as pre-separators, pre-filters, spark traps, cleanable or self-cleaning main filters, HEPA filters, and final filters for odour or VOC-related needs. The right approach depends on the contaminant, how it is generated, the pickup method, and the filtration stages required for the process.

What are At-Source Capture Systems?

At-Source Capture Systems are localized high-vacuum or high-pressure filtration systems intended to capture contaminants directly from tools, close-proximity nozzles, or very near the point of emission. In practice, they are used where a standard hood or broader low-pressure capture method may not be the best fit for the process. They are typically selected when the goal is to capture contaminants as close to generation as possible using a compact, process-specific collection method.

When should you use At-Source Capture Systems?

These systems are typically used when contaminants are generated from a defined point and a close-in pickup method can be applied effectively. They may be a strong choice for welding-related applications, grinding, buffing and polishing, chip collection, drilling, demolition, floor grinding, soldering, and other processes where targeted high-vacuum capture is more practical than larger conventional hoods. The best fit depends on the process, contaminant loading, filtration requirements, pickup design, and whether the equipment must be mobile or workstation-based.

Typical applications

• welding and soldering
• buffing and polishing
• concrete demolition and floor grinding
• drilling and mining-related point capture
• chip collection and machine-tool cleanup
• surface grinding
• repair and maintenance operations
• mobile industrial source-capture tasks

Key benefits

• captures contaminants very close to the point of generation
• supports targeted control for difficult or highly localized applications
• available in mobile and process-specific configurations
• can be configured with multiple filtration stages for the application
• suited to demanding tasks where conventional broad capture may be less effective

Important selection considerations

When selecting an At-Source Capture System, key factors may include:

• contaminant type and particle characteristics
• required pickup method and proximity to the source
• airflow and vacuum requirements
• filtration stages and final filter requirements
• whether HEPA filtration is needed
• spark, heat, or process-specific safety considerations
• mobility or workstation setup requirements
• maintenance access and long-term filter servicing needs

The right At-Source Capture System depends on how and where it will be used. LEV-CO can help review your process, contaminant characteristics, pickup method, and filtration requirements to recommend a practical solution for close-in source capture, mobile extraction, and high-vacuum industrial applications.