Abstract: The present invention relates to a face mask for wearing over mouth and nose of a user, comprising a flexible body portion (11) and one or more fastening means (12) attached to the body portion (11). The body portion substantially covers a respiratory tract opening e.g. mouth and nostrils, of the user to block an entry of undesired airborne impurities into the respiratory tract opening. When the mask (10) is worn, a front surface of the body portion (11) is exposed to an external atmosphere and a rear surface of the body portion (11) comes in substantial contact with the face. The fastening means (12) holds the body portion (11) against the face when the mask (10) is worn.