Which equipment is used to protect against inhalation hazards in the lab?

• A. Fume hood
• B. A fan
• C. A microwave
• D. A laboratory oven

Answer: (A)

A fume hood provides protection against inhalation hazards by serving as local exhaust ventilation. It captures vapors, fumes, and dust at the source and exhausts them away from you, keeping your breathing zone clear. The sash and proper operation help maintain effective containment and create a slight negative pressure relative to the room, so contaminants are drawn into the hood rather than escaping into the lab. In contrast, a regular fan merely circulates air without removing hazardous vapors, and a microwave or a laboratory oven does not shield you from airborne contaminants. So, using a fume hood is the appropriate way to protect your lungs when working with potentially dangerous inhalants.