When sourcing a spray booth for Australia, you must prioritize AS/NZS 4114 compliance, which governs the design, installation, and operation of spray painting booths. Key technical specs include a minimum airflow velocity of 0.3m/s for cross-draft booths or 0.4m/s for down-draft booths to ensure hazardous fumes are effectively removed. Ensure the booth features high-efficiency centrifugal fans and a heat exchange system (if using gas burners) with a thermal efficiency of at least 85%. For the structure, look for 50mm or 75mm EPS or Rockwool sandwich panels with skin thickness of at least 0.426mm to ensure structural rigidity and thermal insulation.