This Half face respirator is made by Gill and is a size Large. It comes in both regular and PRO models for USD 12 and USD 36 respectively.  The PRO model is pictured here. It has a Medium 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 4 and 5.75 respectively. The distance in inches, straight up and down in the middle along the nose line is a minimum of 3.75 and a maximum of 5. The average depth of the mask is 1.4 inches. You can find more information about this mask at https://www.gillmask.com/collections/frontpage. This mask weighs about 84/98 grams. Pro comes w/ silicone strap, specific filters, regular w/ fabric strap, replaceable filter