To provide a mask with earmuffs to protect ears from the cold, which can be attached to or removed from the mask according to the change of temperature.

Strings are stitched on the upper part of both right and left sides of the mask, but they are not stitched on the lower part of the mask. The string has an acute angled tip. The mask has a hole at the chin part where a string may go through and also has a string loop. On the both earmuffs, there is provided a string loop around the hole where ear is inserted. The earmuffs can be attached to the mask by: inserting the right and left strings in the string loops of the right and left earmuffs; and inserting them further either in the hole of the chin part of the mask or in the string loop of the chin part to tie them. When using the mask without attaching the earmuffs, the stings are inserted directly into the hole of the chin part of the mask or in the string loop of the chin part to tie them instead of inserting the strings in the string loops of the earmuffs, thereby achieving a mask without earmuffs.