Mixed-use sites—offices above workshops, labs beside retail, or warehousing under studios—are complex to manage. The challenge is to protect clean zones without over-engineering the whole building.

Map risk and zoning

Start with a plan that classifies spaces: generate, transfer, receive. Identify vertical shafts, risers, and stairwells that can move air and dust between floors. Prioritise high-risk processes (e.g., silica, wood dust, welding fume) for tighter control.

Control at source and by zone

Fit or verify LEV at dust-generating points and check hood positioning. Use negative air units to hold dusty rooms slightly negative. Keep offices, retail, and welfare areas slightly positive. Ensure door hardware and seals support the pressure plan.

Coordinate with HVAC

Balance supply and extract so pressure cascades clean-to-dirty across tenancies. Prevent recirculation of dusty air between occupancies by using dedicated returns or high-efficiency filtration before any mixing. Consider duty schedules: run extract longer in production to purge before office hours.

Flexible boundaries

Spaces change use. Choose solutions that can be reconfigured quickly. Modular systems for containment and filtration allow you to resize or relocate dust control as tenants or layouts change, and MAXVAC components can form part of a scalable approach without redesigning fixed services.

Verification and response

Spot-check PM2.5/PM10 at boundaries and in shared corridors. Keep a simple trigger plan: if readings climb, check doors, pressure, and filter loading; if that fails, escalate to temporary containment and increased extraction. Document controls to support COSHH assessments and tenant communications.

Practical takeaways

• Define clean-to-dirty zones and hold a pressure cascade.
• Use LEV and negative air in production; keep clean areas positive.
• Balance HVAC to prevent cross-tenant recirculation.
• Adopt reconfigurable containment/filtration for changing layouts.
• Verify with PM spot checks and maintain a clear action plan.

By zoning, coordinating HVAC, and choosing flexible controls, you can maintain reliable air quality across differing occupancies without unnecessary complexity.