Which of the following is a direct consequence of insufficient respirator seal?

• A. Increased exposure to pesticides through leaks
• B. Longer filter life
• C. Improved comfort
• D. Reduced cost

Answer: (A)

A good respirator seal is essential because air must pass through the filter material, not around the face. When the seal is insufficient, air leaks around the edges of the respirator, allowing unfiltered air that may contain pesticides to be drawn into the breathing zone. This directly increases your exposure to the chemicals you’re trying to guard against.

The other ideas don’t reflect what happens with a poor seal. A leak doesn’t extend filter life; it bypasses the filter, so protection is lost rather than conserved. Comfort might feel affected in different ways, but it’s not the primary safety consequence. And reduced cost isn’t a direct effect of an improper seal and can even lead to more risk or additional protective measures.