This Half face respirator is made by 3M and is a size Small. It's model is the 6501 it costs about 30 dollars US. It has a Med/High nose bridge height, and its facepiece is made of Silicone. The width min and max distances, in inches, curving from mid cheek to mid cheek are 2.5 and 4.5 respectively. The distance in inches, straight up and down in the middle along the nose line is a minimum of 2.75 and a maximum of 4.75. The average depth of the mask is 1.725 inches deep. You can find more information about this mask at https://www.3m.com/3M/en_US/p/d/v000154018/. This mask weighs about 99 grams.