A clear plastic visor (16) is secured to a mask (12) which is removably attachable to the face of a wearer. The visor (16) is secured to the mask (12) at bond areas (48, 50) on opposite ends of the mask (12). The visor (16) is provided with a notched keyhole (20) to allow the visor (16) to conform...http://www.google.co.uk/patents/US5704349?utm_source=gb-gplus-sharePatent US5704349 - Surgical face mask with darkened glare-reducing strip and visor
