1. An apparatus (10) for determining the mask size to determine information about the sizes for defining a custom designing masks for face masks which comprises: a control unit (20) image projection for projecting an image (16) on the face (18) of a person, wherein an image ( 16) comprises at least a certain number of contact points face masks, said contact point represent possible points of contact face mask with a face (18) of a person unit (22) for controlling said unit (20) is projected Image anija to adjust the size, position and / or orientation of an image (16) and / or in order to project an image that includes two or more podyzobrazheniya that have different sizes, the position and / or orientation, wherein podyzobrazhenie comprises at least a certain number of contact points face masks ischityvayuschy unit (24) for reading information on the definition size, which contains information about the size, position and / or orientation of the image (16) and / or selected podyzobrazheniya.2. Apparatus for determining dimensions of the mask according to Claim. 1, wherein the control unit (20) image projection configured to project an image (16) which comprises a circuit for mask cushion litsa.3. Apparatus for determining dimensions of the mask according to Claim. 1, wherein the control unit (20) image projection configured to project an image (16), which comprises a frontal contour pillow masks litsa.4. An apparatus for determining the size of the mask according to Claim. 1, wherein the control unit (20) image projection configured to project an image (16) which comprises a plurality of colors representing time1. Устройство (10) для определения размеров маски для определения информации об определении размеров для персонализированного конструирования маски для маски для лица, которое содержит:блок (20) проецирования изображения для проецирования изображения (16) на лицо (18) человека, причем изображение (16) содержит, по меньшей мере, определенное число точек конта