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face mask: Explained: In the post-mask world of travel, should you wear a face mask if nobody else is wearing? - The Economic Times
![Steve Kirsch: Tech tycoon offers $100,000 to female co-passenger to take off her face mask, she declines - The Economic Times Steve Kirsch: Tech tycoon offers $100,000 to female co-passenger to take off her face mask, she declines - The Economic Times](https://img.etimg.com/thumb/msid-98869523,width-650,height-488,imgsize-2170776,,resizemode-75/.jpg)
Steve Kirsch: Tech tycoon offers $100,000 to female co-passenger to take off her face mask, she declines - The Economic Times
![WestJet on Twitter: "As per @Transport_gc requirements, masks with an exhalation valve are no longer an acceptable form of mandatory face mask or face covering for air travel as they do not WestJet on Twitter: "As per @Transport_gc requirements, masks with an exhalation valve are no longer an acceptable form of mandatory face mask or face covering for air travel as they do not](https://pbs.twimg.com/media/Ef0jNDlXgAAjz8Y.jpg)
WestJet on Twitter: "As per @Transport_gc requirements, masks with an exhalation valve are no longer an acceptable form of mandatory face mask or face covering for air travel as they do not
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