Exposure varies by task, time, and airflow. A single average hides risk pockets that drive complaints and non-compliance. Combining fixed and personal monitors helps you understand background conditions and personal dose, so controls can be targeted where they matter.

Define zones and airflow

Map production lines, enclosures, walkways, and transfer points. Note airflows from doors, HVAC, and LEV exhausts. Place background monitors upwind and at likely accumulation points: corners, mezzanines, and near returns.

Pair zone data with personal exposure

Use personal devices on representative roles to capture actual dose during tasks and transit. Compare to zone trends: if background is clean but wearers spike during bag changes or clean-up, focus on source capture and housekeeping. If background is high across the shift, increase local air cleaning or investigate leakage.

Act on contrasts

Where one zone drives the site average, create a contained work area and add negative pressure during high-risk tasks. Select H14 filtration for respirable or carcinogenic dusts and confirm airflow under load. Portable air scrubbers, including the MAXVAC Dustblocker range, can provide flexible control while permanent LEV is installed.

Schedule and segregate

Time high-emission tasks when fewer people are present, and separate pedestrian routes from plume paths. Ensure housekeeping vacuums are M-Class or H-Class and ban sweeping and compressed air.

Practical takeaways

• Use background monitors to map where dust collects.
• Add personal data to reveal real dose during tasks.
• Target the worst zone with containment and air cleaning.
• Choose H14 when dealing with respirable or carcinogenic dusts.
• Verify improvements by comparing pre/post trend data.

With clear zoning and matched controls, you can cut exposure without over-engineering low-risk areas, focusing effort where it delivers the greatest reduction.