A ==Key Stage 3=====Meaning===[[File:IrritantSymbol.png|right|300px|thumb|The symbol for [[irritant]] [[chemical]]s.]]An [[irritant]] is a [[substance ]] that irritates 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. ===Precautions===*[[Safety Spectacles]] - To reduce the chance of any getting in the [[eye]]s.*Eye Washing Kit - To quickly remove any which get in the [[eye]]s.*Running Tap - To quickly wash off any which gets on the [[skin]] . ==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. ===Precautions===*[[Safety Spectacles]] - To reduce the chance of any getting in the [[eye]]s.*Eye Washing Kit - To quickly remove any which get in the [[eye]]s.*Running Tap - To quickly wash off any which gets on the [[skin]].