What respiratory protection is used for hexavalent chromium?

Respiratory protection for hexavalent chromium may be necessary if engineering controls alone cannot adequately reduce exposure. Depending on the exposure level, protection may include:

• NIOSH-approved half-mask or full-face respirators
• Powered air-purifying respirators (PAPRs)

However, OSHA and industrial hygiene best practices prioritize engineering controls first, meaning weld fume extraction and ventilation should be implemented before relying on PPE alone.