# PASSENGER OXYGEN

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### MASK DEPLOY SELECTOR KNOB <a href="#toc118376461" id="toc118376461"></a>

<mark style="color:red;">OFF: Disables automatic deployment of passenger oxygen masks.</mark>

<mark style="color:red;">AUTO: Automatically deployed when the cabin altitude is between 14.000ft to 14.750ft.</mark>

<mark style="color:red;">OVRD: Deploys the passenger oxygen masks regardless of cabin altitude.</mark>

### MASKS DEPLOYED LIGHT <a href="#toc118376462" id="toc118376462"></a>

<mark style="color:red;">An ON light illuminates, indicating that the passenger and flight attendant oxygen masks have been deployed.</mark>

<mark style="color:red;">When the passenger masks doors are commanded open the FASTEN SEAT BELT and the NO SMOKING signs turn on regardless of the switch position.</mark>


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