Paper I
2024 June (Supplementary) (2019 Scheme) · 100 marks · 180 min
Question
What does “N95” refer to in a respirator.
Q211 marks
Answer
“N95” refers to a respirator classification (US NIOSH standard) indicating that the mask is Not resistant to oil, and filters at least 95% of airborne particles (down to 0.3 micron size) — used for protection against airborne transmission of infectious agents (e.g., M. tuberculosis), when properly fit-tested and worn.
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