Fume hood safety guidelines

Fume hoods are essential pieces of equipment in laboratories used to protect researchers from exposure to hazardous fumes, gases, or vapors. To ensure safety when working with fume hoods, it’s crucial to follow specific guidelines and protocols:

1. Proper Training:

Before using a fume hood, ensure that you receive proper training on its operation, including how to open and close the sash, control airflow, and use emergency features.

2. Conduct a Pre-Use Inspection:

Before starting work, visually inspect the fume hood for any visible damage or issues.

Ensure that the sash, baffles, and airfoil are clean and in proper working order.

3. Wear Appropriate PPE:

Always wear the necessary personal protective equipment (PPE) when using a fume hood. This typically includes lab coats, safety goggles, and gloves.

4. Sash Management:

Keep the fume hood sash at the recommended operating height to maintain proper airflow.

Do not block the airflow with equipment or materials.

Avoid placing your head or body inside the hood, as this can disrupt airflow.

5. Work Close to the Hood Face:

Perform work as close to the fume hood face as possible to maximize containment of hazardous substances.

Keep all equipment and chemicals at least 6 inches (15 centimeters) behind the sash to prevent exposure.

6. Limit Movement Inside the Hood:

Minimize unnecessary movement and activities inside the fume hood.

Avoid reaching across the fume hood face.

7. Use a Fume Hood Monitor:

If available, use a fume hood monitor to measure and ensure proper airflow and containment.

Pay attention to alarms and indications of airflow disruptions.

8. Avoid Chemical Splashes:

Use caution when working with chemicals to prevent splashes, spills, or aerosol generation.

Use splash shields or trays when necessary.

9. Monitor Chemical Reactions:

When conducting chemical reactions in a fume hood, keep an eye on the reaction and its progress to prevent overflows or unexpected outcomes.

10. Keep the Hood Clean:

– Maintain a clean and clutter-free fume hood. Remove unnecessary equipment, containers, and materials when not in use.

– Clean up chemical spills promptly, following your lab’s chemical spill response procedures.

11. Use the Fume Hood for Its Intended Purpose:

– Do not use a fume hood for non-hazardous or incompatible materials unless specifically designed for that purpose.

– Avoid using fume hoods for storage.

12. Maintain Chemical Compatibility:

– Ensure that chemicals used in the fume hood are compatible with the materials and surfaces inside the hood.

13. Label Chemical Containers:

– Clearly label all chemical containers inside the fume hood with their contents, hazards, and any necessary warning labels.

14. Emergency Procedures:

– Familiarize yourself with the fume hood’s emergency shut-off controls.

– Know the location of eyewash stations, safety showers, and fire extinguishers in case of emergencies.

15. Regular Maintenance and Certification:

– Schedule regular maintenance and certification of fume hoods to ensure their proper functioning.

– Report any issues or concerns with the fume hood to lab management or maintenance personnel.

16. Proper Shutdown:

– When finished using the fume hood, close the sash to the appropriate height or fully close it to minimize energy consumption and maintain containment.

17. Document Work:

– Keep a record of the chemicals and procedures used inside the fume hood for future reference or in case of incidents.

Always consult with your lab’s safety officer or supervisor for specific safety protocols and guidelines related to fume hood use in your facility. Proper fume hood operation is essential for maintaining a safe and productive laboratory environment.