Key Considerations for Multiple Fume Hoods Sharing One Exhaust Fan

Sharing a single exhaust fan among multiple fume hoods is a common practice that requires careful engineering to ensure each fume hood performs optimally.

Key Considerations:

• Sizing: Total exhaust capacity must equal the sum of all connected fume hoods' requirements.
• Balance: Use dampers to balance airflow between multiple fume hoods.
• Backup: Consider redundant fans for critical applications.
• Monitoring: Install airflow monitors on each fume hood to verify performance.
• Regulation: Each fume hood should have independent control of its exhaust.