This Half face respirator is made by 3M and is a size Medium. It's model is the 6502 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 3 and 4.75 respectively. The distance in inches, straight up and down in the middle along the nose line is a minimum of 3.25 and a maximum of 5. The average depth of the mask is 1.8 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 93 grams. Generic knockoffs exist for this.