Safe Fume Hood Use


Recommendations for Safe Chemical Fume Hood Use

  1. Annual certifications of the fume hood should be done by the Department of Environmental Health and Safety (EHS) to ensure that it is operating properly. If you have a hood in need of certification or are wondering when your recertification is scheduled for, please contact EHS at 277-2753.

  2. It is recommended that continuous monitoring devices be installed on each fume hood so that fume hood performance can be determined prior to each use. If you would like information on installing a continuous monitoring device, please contact SRS 277-2753.

  3. Fume hoods should not be regarded as a means for disposing of chemicals. Container lids should be kept tightly closed and chemicals disposed of according to UNM’s Hazardous Waste Management Guidelines.

  4. Vertical and/or horizontal sash doors should be closed to the maximum position possible while still allowing comfortable working conditions. This increases the performance of the fume hood and provides eye and face protection. If a sash restriction has been placed on the fume hood, the fume hood must not be used with the sash above the designated mark.

  5. Keep equipment in the fume hood to a minimum. If equipment is used in the hood, it should be kept to the sides of the hood. Placing equipment close to the face or against the back of the hood alters airflow patterns.

  6. Do not lean into the fume hood, make quick motions into or out of the hood, or walk quickly by the hood opening. This causes airflow disturbances.

  7. Use the appropriate fume hood for the job. Perchloric acid should only be used in an approved Perchloric Acid hood that is labeled as such. Hoods in which radionuclides are used must be labeled according to Radiation Safety guidelines. Hood Use Types: General Chemistry, Perchloric Acid, and Radionuclides.

  8. Sash doors should never be removed from fume hoods.

  9. Limit chemical storage in fume hoods. Chemical storage in hoods alters airflow patterns and chemicals should be moved from hoods to the appropriate storage cabinets.

  10. Contact EHS at 277-2753 if you think that your hood is not functioning properly and do not use it until it has been approved for use.