What does Fume Category B indicate?

What does Fume Category B indicate?

• A. Mild odor with no irritation.
• B. Pleasant fragrance with slight dizziness.
• C. Mild irritation to eyes.
• D. Strong irritation to eyes, pungent, acrid.

Answer: (D)

Fume category communicates how hazardous inhaled fumes are based on what you notice and how they affect you. Category B is defined by a potent irritant effect: you detect a pungent, acrid odor and you experience strong irritation to the eyes. That combination signals a significant hazard, more serious than a mild odor with no irritation or only mild eye irritation, and certainly more urgent than a pleasant fragrance with dizziness. In aviation safety, such a description would prompt treating the exposure as a meaningful irritant hazard and taking protective actions accordingly.

Fume category communicates how hazardous inhaled fumes are based on what you notice and how they affect you. Category B is defined by a potent irritant effect: you detect a pungent, acrid odor and you experience strong irritation to the eyes. That combination signals a significant hazard, more serious than a mild odor with no irritation or only mild eye irritation, and certainly more urgent than a pleasant fragrance with dizziness. In aviation safety, such a description would prompt treating the exposure as a meaningful irritant hazard and taking protective actions accordingly.