In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Q: A respirator is a kind of mask that is used to protect someone from breathing in dusts , fumes , or gases that might hurt them .
A:
A respirator is a device designed to protect the wearer from inhaling hazardous atmospheres , including particulate matter such as dusts and airborne microorganisms , as well as hazardous fumes , vapours and gases .