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Increased mask usage due to COVID-19, Various problems have been caused, such as forgetting to wear a mask, or having no mask in public places or emergency situations. There are many limitations when not wearing a mask. We propose a very simple solution. No-mask no-entry movements are taking place all over the world. Isn't there a mask that's always easy to carry? We offer a card-type mask that can be easily stored in a portable wallet that you always carry. The card-shaped case made by hard processing of nature-friendly paper . This mask prevents the spread of corona, provides user convenience and reduces social problems.
Anseong, South Korea