Health & Safety Programs第 89 / 100 题
What is the purpose of a respirator fit test?
a.To ensure a tight-fitting respirator seals properly to the wearer's face
b.To check the color
c.To measure the worker's height
d.To test breathing speed for fun
解析
A fit test verifies that a tight-fitting respirator forms an effective seal against the wearer's face so contaminants cannot leak in. It must be done before first use and periodically thereafter. Facial hair or an improper size can break the seal and defeat protection.
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