This 1/4 face respirator is made by Armbrust and is One Size. Its model is the Breathe99 and it costs about 60 dollars US. 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 2.75 and 4.25 respectively. The distance in inches, straight up and down in the middle along the nose line is a minimum of 2.5 and a maximum of 4.25. The average depth of the mask is 0.675 inches deep. You can find more information about this mask at https://www.armbrustusa.com/products/breathe99-elastomeric-mask?variant=40070663471237. This mask weighs about 42 grams. This mask has source control, and its filtration is not certified.