Dust and Fumes
Silica and other airborne hazards, work methods, extraction, damping, RPE and public protection.
How to prepare for SMSTS
Connect each legal and technical topic to a manager's planning, communication, verification and learning decisions, then practise the resource-timing and two-mark focus-area boundaries.
Core concepts
Concept 1
Cutting, grinding, demolition and vehicle activity can create respirable dust and fumes that cause irreversible harm.
Exam cue: Choose equipment with effective source capture.
Concept 2
Elimination, prefabrication, alternative methods, on-tool extraction and damping take priority over RPE alone.
Exam cue: Verify airflow, water supply, housekeeping and RPE fit.
Concept 3
Controls must protect nearby workers, the public and the environment as well as the tool user.
Exam cue: Prevent dry sweeping and uncontrolled compressed-air cleaning.
Risk pitfalls and guardrails
Using a disposable mask as the complete silica control.
Guardrail: Do not use a signed form, course certificate or personal experience as a substitute for a missing competent plan or physical control.
Allowing extraction bags or filters to become overloaded.
Guardrail: Do not use a signed form, course certificate or personal experience as a substitute for a missing competent plan or physical control.
Moving dust exposure to another trade or neighbour.
Guardrail: Do not use a signed form, course certificate or personal experience as a substitute for a missing competent plan or physical control.
Memory anchors
Capture at Source
Stop airborne contamination before it spreads.
Wet, Extract, Enclose
Use engineering methods before relying on RPE.
Fit, Face, Filter
RPE must suit the hazard and wearer.
Control Beyond the Tool
Protect everyone in the exposure path.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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