Office teams working inside industrial sites are often exposed to drifting dust from production. Beyond irritation and lost productivity, some dusts carry serious health risks; for example, HSE’s WEL for respirable crystalline silica (RCS) is 0.1 mg/m3. The goal is simple: separate people from particles by combining prevention, control and housekeeping.

Establish pressure separation

Design airflow so production areas run neutral to slightly negative and offices are kept slightly positive. Fit door closers and maintain “doors closed” discipline. Add small lobby spaces at busy doorways. Use a simple differential pressure gauge so facilities teams can see at a glance if the gradient is holding.

Block the easy leak paths

Seal service penetrations, cable holes, and gaps at skirting or ceiling voids. Keep shared HVAC from bypassing your barriers: blank unused transfer grilles, balance dampers, and ensure office supply slightly exceeds extract. Where refurbishment is underway, temporary plastic screening and taped edges reduce drift through incomplete partitions.

Reduce dust at source

Less dust created means less to manage. Use tool-mounted extraction with the right filter class, water suppression for cutting, and slower passes when practical. Schedule high-dust work when offices are empty and check LEV hoods are positioned close enough to the point of generation.

Control residuals in the office

For any drift that still arrives, use a quiet HEPA unit to recirculate and polish the office air; office air purifiers, including compact MAXVAC models, can be positioned away from doors to avoid drawing air from production. Aim for H13/H14 filtration where fine or carcinogenic dust could be present. Check airflow under load and maintain filters before they clog.

Housekeeping that prevents re‑agitation

Avoid sweeping and compressed air. Use industrial M/H-Class vacuums with high-efficiency filtration, clean from clean-to-dirty, and fit tack mats at thresholds. Wipe high-touch horizontal surfaces (window sills, printer tops) that collect fine dust.

Practical takeaways

• Keep offices positively pressurised; production neutral/negative.
• Seal penetrations and manage doorways with lobbies and closers.
• Capture dust at source with LEV and water suppression.
• Use HEPA (preferably H14) recirculating units in offices.
• Vacuum, don’t sweep; maintain filters and check under-load airflow.

With a consistent pressure plan, disciplined door management, and source control, most migration can be prevented. A small investment in sealing and maintenance usually delivers the biggest gains for office staff safety and comfort.