If a respirator does not fit properly, what is likely to occur?

• A. Air can leak around the face
• B. The filter lasts longer
• C. It becomes lighter
• D. It becomes quieter

Answer: (A)

A respirator works by pulling inhaled air through its filter, but only if it seals tightly against the face. When the fit isn’t proper, air leaks around the edges instead of passing through the filter material. Those gaps let contaminated air bypass the filter, so you’re still exposed to pesticides even while wearing the respirator. The other effects—air becoming lighter or quieter, or the filter lasting longer—don’t reflect how protection works, because the key issue is the seal. To maintain protection, ensure a snug fit with the right size and perform a fit check and strap adjustments as needed.