The obligation
PCBUs must provide adequate mechanical ventilation in spray booths and spray rooms to control chemical vapour concentrations below flammable limits and exposure standards.
The Code mandates that spray painting must be conducted in properly designed and maintained spray booths or spray rooms with mechanical ventilation that captures and exhausts hazardous vapours and overspray. Ventilation systems must be designed to maintain concentrations of flammable vapours below 25% of the LEL, and chemical exposures below WES. Systems must be inspected, tested, and maintained regularly. Natural ventilation alone is generally insufficient.
- What
- PCBUs must provide adequate mechanical ventilation in spray booths and spray rooms to control chemical vapour concentrations below flammable limits and exposure standards.
- Source
- worksafe.wa.gov.au
description
Full analysis
lock
Free account
tips_and_updates
What this means for you
lock
Free account
lock_open
Read the full analysis, tailored to your industry
- star
Impact summary tailored to your industry
- check_circle
Full plain-English analysis of what changed
- check_circle
Email alerts & digests when this law changes
- check_circle
Compliance self-assessment tools
Labels
ventilation
spray booth
LEL
WES
mechanical ventilation
overspray
Official sources
Frequently asked questions
Which WHS law does this come from?
Ventilation requirements for spray painting and powder coating areas is a WHS requirement set out in Spray painting and powder coating (WA). It is made under Work Health and Safety Act 2020 (WA). The relevant provision is WA > WHS > Codes of Practice > Spray Painting and Powder Coating > Ventilation.
What does this WHS obligation require?
Ventilation requirements for spray painting and powder coating areas is a WHS obligation under Spray painting and powder coating (WA). In short, PCBUs must provide adequate mechanical ventilation in spray booths and spray rooms to control chemical vapour concentrations below flammable limits and exposure standards.
What changed recently?
Ventilation requirements for spray painting and powder coating areas was last updated on 25 August 2026.
