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===Meaning===
[[File:IrritantSymbol.png|right|300px|thumb|The symbol for [[irritant]] [[chemical]]s.]]
An [[irritant]] is a [[substance ]] that can cause itching and pain to the [[skin]], [[eyes]] or [[lung]]s. ===About Irritant Chemicals===: [[Irritant]]s can cause a rash if they get on the [[skin]] without immediately being washed off.: Some [[irritant]]s are a [[gas]] and may cause '''irritation''' to the [[lung]]s. ==Key Stage 4=====Meaning===An [[irritant]] is a [[substance]] that can cause itching and pain to the [[skin]], [[eyes]] or [[lung]]s.
===About Irritant Chemicals===
: [[Irritant]]s can cause a rash if they get on the [[skin]] without immediately being washed off.
: Some [[irritant]]s are a [[gas]] and may cause '''irritation''' to the [[lung]]s.