Source Capture Systems
Helpful information from the ICAN Information Center: understanding the comparative benefits of the best source capture systems.
| System: | Benefits: | Limitations: |
| High Vacuum Systems |
- Capture velocity keeps contaminant out of worker breathing zone.
- Extraction hood is connected to the tool.
- High energy efficiency.
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- Adds weight and bulk to tools.
- Can interfere with tight, precise welding tasks.
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| Extractor Arms |
- Capture velocity keeps contaminant out of worker breathing zone.
- Flexible movement/portable.
- High energy efficiency.
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- Requires worker operation.
- Limited capture zone.
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| Backdraft Hoods |
- Effective removal of contaminant from breathing zone.
- High energy efficiency.
- No worker operation required.
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- Horizontal capture can be compromised in processes involving thermal drafts or heavy, falling particles.
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| Self-Contained Downdraft Tables |
- Collects all sizes of dust, airborne as well as heavy, falling particles (as in grinding and sanding).
- Can be situated at any location in the shop.
- Broadly versatile for multi-task operations.
- Worker freedom of movement.
- Accommodates mounting of tool fixtures.
- Provides containment while conserving floor space.
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- High energy welding or grinding operations can cause fire hazard.
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| Downdraft / Backdraft Benches |
- All the features of downdraft tables with an added full enclosure for clean air purge and integrated lighting.
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- High energy welding or grinding operations can cause fire hazard.
- Can be restrictive for processes involving unusually large parts.
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| Dust Control Booths |
- Collects all sizes of dust, airborne as well as heavy, falling particles (as in grinding and sanding).
- Virtually no size limitation: accommodates large parts and multiple, simultaneous operations.
- Complete freedom of movement, sitting or standing.
- Fully contains dusty operations.
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- Broad area ventilation means lower capture velocity directly at the dust source.
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