South Korea is now selling a new nose-only Covid-19 mask that allows people to eat and drink while covering their noses, but it has also become the topic of criticism among netizens. According to The Guardian, the mask, named ‘Kosk’ – a combination of the Korean word ‘ko’ (nose) and ‘mask’, was developed by a … Continue reading South Korea’s COVID-19 ‘kosk’ mask raises doubts over its effectiveness