An object of the present invention is to provide a mask which can be worn without stretching the ear straps more than necessary and which is less likely to put a load on the ears. The hook strap of the mask has a length of 20 cm or more outside the contour of the mask body. On the other hand, in a general mask, the length of the strap around the ear is about 15 cm. Therefore, the mask hook is more than 30% longer than the conventional common mask hook. Because the over-the-ear cord can be worn without being stretched more than necessary, the discomfort felt by the wearer can be reduced while providing functions according to the purpose. [Selected figure] Figure 1
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