Workplace Exposure Limits (WEL): Welding Fume Extraction and Respiratory Protection

From 1 December 2026, Workplace Exposure Limits (WEL) replace the Workplace Exposure Standards, and some welding fume components drop sharply. Manganese, for one, falls from 1 to 0.1 mg/m³ (inhalable). On top of that, the AS/NZS ISO 21904 series now sets the bar for fume extraction equipment. 

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