This Half face respirator is made by Drager and is a size Large. Its model is the 3500 and it costs about USD30. It has a High nose bridge height, and its facepiece is made of Silicone free TPE. The width min and max distances, in inches, curving from mid cheek to mid cheek are 2.25 and 4.5 respectively. The distance in inches, straight up and down in the middle along the nose line is a minimum of 3 and a maximum of 5.5. The average depth of the mask is 1.825 inches. You can find more information about this mask at https://www.amazon.com/dp/B0732DPD8W/. This mask weighs about 101 grams.