Good air movement is planned, not guessed. A simple design process aligns supply, extraction, and housekeeping so dust is captured, transported, and filtered instead of being blown around.

Map the space and tasks

• Mark clean routes, welfare, and offices. Put the work zone downwind of these areas.
• Identify dust sources and schedule high-emission tasks when extraction is available.
• Close off unneeded openings so air follows your chosen path.

Set the flow path

• Drive air from clean to dirty. Aim supply across the workface and towards extraction.
• Use fans to move air gently; indirect flow reduces turbulence. Reference points (smoke pencil or tissue) help check direction.
• Avoid blowing along floors or directly at dusty piles.

Choose equipment and pair it

Fans provide the push; extraction provides the pull. Use mobile filtration as the backbone—units such as MAXVAC Dustblockers can provide continuous scrubbing when positioned to capture the airstream. For fine or carcinogenic dusts, ensure high-efficiency filtration (H13/H14) and verify airflow under load rather than relying on free-air figures.

Commission and verify

• Start low speed, then tune. If smoke loops back, adjust angle or location.
• Check for slight negative pressure in the work zone (doorway tissue pulled inward).
• Track particulate trends during tasks; falling or stable PM confirms control.

Integrate the 3-layer framework

• Capture at source with tool extraction or water suppression.
• Capture in the air with filtration and planned airflow.
• Capture on surfaces by vacuuming with high-efficiency filtration; avoid dry sweeping.

Practical takeaways

• Plan airflow on paper before moving kit; define clean-to-dirty routes.
• Pair fans with extraction and high-efficiency filtration for fine dusts.
• Prove performance with smoke and particulate readings, then document the setup.

A small amount of design work prevents re-suspension, protects clean areas, and makes every other control more effective.