Can surplus compressed gases be vented into the fume hood?

Venting surplus compressed gases into a fume hood is generally not appropriate or safe practice. Fume hoods are designed to protect laboratory personnel by containing hazardous vapors and fumes from substances being handled within the hood itself. Compressed gases can pose several risks, including fire or explosion hazards, toxic inhalation, or asphyxiation if not properly managed.

Additionally, fume hoods have specific airflow requirements and are calibrated for certain applications; introducing excess gas can disrupt the intended airflow and potentially cause harmful gases to escape. It is crucial to follow proper procedures for disposing of or managing surplus compressed gases, which typically involve specialized equipment or facilities designed for safe gas venting, rather than relying on a fume hood.