Vacuum bags help with waste handling and can extend run time, but they are not fine filters. Treat bags as part of the capture chain, not a replacement for certified filtration, especially when dealing with hazardous dust like RCS or wood dust.

Bags vs filters: different jobs

• Bags collect and contain debris; they reduce mess during disposal.
• Filters remove fine airborne particulate. For hazardous or respirable dusts, use high-efficiency filtration (M-Class/H-Class; HEPA H13/H14 as appropriate).
• Without the correct filter in place, fine dust bypasses the bag and is exhausted back into the workspace.

Performance and safety implications

• A full or torn bag reduces airflow under load and can leak. Monitor suction and change bags before performance drops noticeably.
• Never run a vacuum with the main filter removed, even briefly. It risks exposure and damages the motor.
• For frequent fine dust, consider a cyclonic pre-separator to minimise filter loading and maintain stable capture.

Good housekeeping practice

• Use the correct bag type for the material and task; seal and double-bag waste where required.
• Check gaskets, lids and ports for tight seals to prevent bypass leaks.
• Avoid sweeping; vacuum surfaces and damp-wipe to prevent re-agitation.

Think of the bag as the bin and the filter as the safety net. You need both. For fine or carcinogenic dusts, ensure the filtration stage meets H14 requirements, and keep maintenance tight to preserve airflow and protection.