| System: |
Benefits: |
Limitations: |
| High
Vacuum Systems |
•
Capture velocity keeps contaminant
out of worker breathing zone.
• Extraction hood is connected to the
tool.
• Good energy efficiency. |
•
Adds weight and bulk
to tools.
• Can interfere with tight,
precise welding tasks. |
| Extractor
Arms |
•
Capture velocity keeps contaminant
out of worker breathing zone.
• Flexible movement/portable.
• High energy efficiency. |
•
Requires worker
operation.
• Limited capture zone. |
| Backdraft
Hoods |
•
Effective removal of contaminant from
breathing zone.
• High energy efficiency.
• No worker operation required.
|
•
Horizontal capture can
be compromised in
processes involving
thermal drafts or heavy,
falling particles. |
| 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. |
•
High energy welding or
grinding operations
can cause fire hazard. |
Downdraft
/
Backdraft Benches |
•
All the features of downdraft tables
with an added full enclosure for clean
air purge and integrated lighting. |
•
High energy welding
and grinding
operations can
generate fire hazard.
• Can be restrictive for
processes involving
unusually large parts. |
| Dust
Control Booths |
•
Collects all sizes of dust, airborne as
well as heavy, falling particles (as in
sanding and grinding).
• Virtually no size limitation:
accommodates large parts and
multiple, simultaneous operations.
• Complete freedom of movement,
sitting or standing.
• Fully contains dusty operations. |
•
Broad area ventilation
means lower capture
velocity directly at the
dust source. |
By
The Industrial Clean Air Network 