Most dust leaves the work zone on boots and clothing. Stopping it at the boundary protects offices, welfare spaces, and finished areas, and reduces rework on cleaning and snagging.

Design the boundary

Create clear dirty-to-clean transitions with self-closing doors, brush seals, and visual zoning. Use barriers to define routes and stop shortcuts through sensitive areas. Provide coat hooks and PPE storage before people step into clean zones.

Clean the soles, not the corridor

Place tack mats or ribbed scraper mats at exits and change them before they load up. Add boot brushes or a quick vacuum station for cuffs and knees so dust is removed before movement. Avoid dry sweeping and compressed air, which re-aerosolise dust; use vacuum-based sweepers for larger corridors and loading bays where appropriate.

Keep routes short and serviced

Plan shortest paths between work zones and welfare. Schedule quick spot-vacuuming of high-traffic points during breaks and at shift end. Store cleaning gear at the boundary so it actually gets used.

Measure and adjust

Walk the route and look for dust prints. If monitoring is available, place a small PM sensor near thresholds to see the effect of changes. Update signage when layouts shift so people do not wander through clean areas by habit.

Practical takeaways

• Define dirty-to-clean transitions with physical barriers and clear routing.
• Use tack mats, boot brushes, and quick vac stations at exits.
• Avoid dry sweeping; deploy vacuum sweepers on larger hard floors.
• Keep cleaning tools at boundaries and service routes during breaks.

Simple boundary design and a few minutes of targeted housekeeping prevent most dust migration. The result is cleaner offices, fewer complaints, and less rework.