This Half face respirator is made by MSA and is a size Medium. Its model is the Advantage 290 and it costs about USD25. It has a Med/High nose bridge height, and its facepiece is made of TPR. The width min and max distances, in inches, curving from mid cheek to mid cheek are 3.5 and 5.25 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. The average depth of the mask is 1.75 inches. You can find more information about this mask at https://www.amazon.com/MSA-815696-Advantage-Half-Mask-Respirator/dp/B013HM71SQ?th=1. This mask weighs about 85 grams. No exhale valve/has source control