How to breathe better with a mask

Wearing a mask becomes common as the spread of Covid-19 (Coronavirus disease) dominates our lives. However, people find it difficult to breathe with a mask. I recently found an interesting new product for masks at Granhand where I visited to buy droppers or incenses for my office. Though you can not seize nor hold the…

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Air Canada, UI and CX of in-flight entertainment system

I recently traveled by Air Canada from Incheon (Seoul) to Vancouver and then to Toronto. I spent 9 hours in a new airplane (Being 788 Dreamliner) and then 4 more hours in an old one (Airbus 320). In two airplanes, I watched same movies and listened to same music to learn a commonality and several differences…

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