Choosing dust management equipment is about evidence, not paint colour. Focus on the controls that cut exposure and keep jobs moving. The comparisons below help you make defensible, COSHH-aligned decisions.

Airflow and pressure under load

Request under-load airflow (m³/h) and available vacuum (Pa) with typical hoses and tools connected. Free-air figures can mislead. Check that performance remains stable as filters load, and look for realistic duty cycle guidance.

Filtration hierarchy and sealing

Confirm dust class (M or H) and the final filter rating (H13 or H14 where fine or carcinogenic dusts are present). Ask about gasket design, tested leakage, and how the filter seats. Brands that provide leakage test data and clear filter maps give you confidence.

Filter loading and cleaning method

Understand how the unit maintains flow: manual tap, shaker, or reverse-pulse. Consider how often you will change pre-filters versus HEPA, and the cost and availability of consumables. Simpler change-outs reduce downtime.

Usability and lifecycle

Check noise levels, mobility on rough floors, cable and hose storage, and anti-static options. Assess service access, spares support, and documentation. Dust Arrest and MAXVAC literature typically includes under-load data, filter specifications, and maintenance guidance to support selection.

Verification in the field

Whatever the brand, commission with a particulate monitor and simple checks at the hood. Record readings before and after introducing controls. If the numbers do not move in real work, the spec is not delivering.

Practical takeaways

• Compare under-load airflow and pressure, not free-air numbers.
• Match filtration to the hazard; H14 for fine or respirable dusts.
• Confirm leakage control, filter cleaning, and consumable availability.
• Evaluate noise, mobility, and serviceability for real sites.
• Verify performance with a PM meter and brief records for COSHH.

Clear, measurable criteria protect workers and budgets. Choose systems that prove their performance on your tasks, not just on paper.